{"title":"Blow Off Valves","description":"\u003cp\u003eManaging boost pressure is key to turbo reliability and consistent performance. IAG Performance offers blow off valves and supporting components for Subaru WRX, STI, Forester XT, and Legacy GT applications. Our selection includes blow off valves, adapters, flanges, gaskets, clamps, and other components designed for EJ25, FA20, and FA24 engines. Help prevent compressor surge and maintain smooth boost operation with quality parts from COBB, Go Fast Bits, HKS, TiAL, TurboXS, Turbosmart, Perrin, Subaru, and more.\u003c\/p\u003e","products":[{"product_id":"iag-blow-off-valve-adapter-for-2002-07-subaru-wrx-2004-18-sti","title":"IAG Blow Off Valve Adapter For 2002-07 Subaru WRX \u0026 2004-21 STI","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG PERFORMANCE BLOW OFF VALVE ADAPTER FOR 02-07 WRX \u0026amp; 04-21 STI\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cp\u003eThe IAG BOV adapter allows you to use your existing OEM factory blow off valve with numerous aftermarket front-mount intercooler kits. Measuring 1.375 inch (both inlet and outlet) and featuring a 1\/2 inch thick flange, you can be assured of a complete seal. Includes new factory gasket and is available in Silver or Black.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Silver","offer_id":48058861945050,"sku":"IAG-ENG-5011SL","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":48058861977818,"sku":"IAG-ENG-5011BK","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-ENG-5011-OPT-01__53128.1775846151.1280.1280.jpg?v=1781529585"},{"product_id":"iag-replacement-blow-off-valve-elbow-for-2002-07-wrx-2004-20-sti-black-finish","title":"IAG Replacement Blow Off Valve Elbow for 2002-07 WRX, 2004-21 STI (Black Finish)","description":"\u003cp\u003eIAG Performance Replacement Blow Off Valve Elbow for 2002-07 WRX \u0026amp; 2004-21 STI\u003cspan class=\"redactor-selection-marker\" id=\"selection-marker-1\"\u003e\u003c\/span\u003e. The IAG billet elbow is a direct replacement for the factory piece which is not available separately from Subaru. Our elbow offers the added flexibility of being able to rotate 180° from the factory position. This feature is useful when being used with an aftermarket intercooler. The IAG elbow includes a new rubber O-ring and stainless steel screws. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062319886554,"sku":"IAG-ENG-5012BK","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apin6fvjf__67864.1649606895.1280.1280.jpg?v=1781529638"},{"product_id":"iag-blow-off-valve-recirculation-block-off-plug-for-2015-18-subaru-wrx","title":"IAG Blow Off Valve Recirculation Block Off Plug For 2015-21 Subaru WRX","description":"\u003cp\u003eThe IAG Blow Off Valve Recirculation Block Off Plug is designed for vehicles converting to an atmospheric blow off valve. The billet aluminum plug fits into the OEM recirculation tube and is finished in an anodized black to protect against corrosion. Fits 2015-21 Subaru WRX\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062322278618,"sku":"IAG-ENG-2052","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apiectvli__40921.1649438661.1280.1280.jpg?v=1781529648"},{"product_id":"subaru-fhi-blow-off-valve-to-intercooler-gasket","title":"Subaru Blow Off Valve to Intercooler Gasket","description":"\u003cp\u003eFHI Blow Off Valve to Intercooler Gasket.\u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":48062324080858,"sku":"21896AA072","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apirokdr7__71737.1697747035.1280.1280.jpg?v=1781529648"},{"product_id":"iag-replacement-blow-off-valve-elbow-for-2002-07-wrx-2004-20-sti-silver-finish","title":"IAG Replacement Blow Off Valve Elbow for 2002-07 WRX, 2004-21 STI (Silver Finish)","description":"\u003cp\u003eIAG Performance Replacement Blow Off Valve Elbow for 2002-07 WRX \u0026amp; 2004-21 STI\u003cspan class=\"redactor-selection-marker\" id=\"selection-marker-1\"\u003e\u003c\/span\u003e. The IAG billet elbow is a direct replacement for the factory piece which is not available separately from Subaru. Our elbow provides the added flexibility to rotate 180° from the factory position. This feature is useful when used with an aftermarket intercooler. The IAG elbow includes a new rubber O-ring and stainless steel screws. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062334402778,"sku":"IAG-ENG-5012SL","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apilaif5x__38557.1649606779.1280.1280.jpg?v=1781529695"},{"product_id":"go-fast-bits-30mm-hose-adapter-base","title":"Go Fast Bits 30mm Hose Adapter Base","description":"\u003cp\u003eGo Fast Bits 30mm Response\/Deceptor Pro Inlet. 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Featuring Vent to atmosphere and Hybrid Recirculation to help with keeping your car running properly as well as giving you a loud Psssh between shifts. Easy Installation and a great sound. Made from 6061 Aluminum and Anodized Stealth black for a beautiful finish and great durability. Install it within 20 minutes with basic hand tools.\u003c\/p\u003e","brand":"Turbo XS","offers":[{"title":"Default Title","offer_id":48062361698522,"sku":"TXSWS-HYB","price":324.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/ds_CLRQ_WS-HYB-01__89619.1726493659.1280.1280.jpg?v=1781529851"},{"product_id":"turbo-xs-02-07-wrx-rfl-blow-off-valve-bov-ws02-xs-rfl","title":"Turbo XS 02-07 WRX RFL Blow off Valve BOV - WS02-XS-RFL","description":"\u003cp\u003eBlow Off Valve; Type XS; 2002-2007 Subaru WRX\/STi (Supersedes WS-RFL).\u003c\/p\u003e","brand":"Turbo XS","offers":[{"title":"Default Title","offer_id":48062361829594,"sku":"TXSWS02-XS-RFL","price":324.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/ds_CLRQ_WS02-XS-RFL-01__26070.1726499406.1280.1280.jpg?v=1781529853"},{"product_id":"turbosmart-bov-kompact-plumb-back-subaru-ts-0203-1215","title":"Turbosmart BOV Kompact Plumb Back - Subaru - TS-0203-1215","description":"\u003cp\u003eFull recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts who do not want to be noticed but want the performance and reliability benefits of a quality BOV.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062383653082,"sku":"TURTS-0203-1215","price":206.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/16add6be553d3298550e93dbd4a6a835__74732.1640208522.1280.1280.jpg?v=1781529988"},{"product_id":"turbosmart-kompact-plumb-back-valve-diverter-valve-for-2008-14-subaru-wrx-ts-0203-1210","title":"Turbosmart Kompact Plumb Back Valve (Diverter Valve) for 2008-14 Subaru WRX - TS-0203-1210","description":"\u003ch2 style=\"text-align:center;\"\u003eKOMPACT PLUMB BACK VALVE (DIVERTER VALVE)\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eFull recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. 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More hand-crafted than mass-produced, Turbosmart products quickly gained acceptance within the performance community for their quality and reliability. Coupled with extraordinary service and after-sales support, Turbosmart quickly became one of the most sought-after names in the industry. Not much has changed since then. Although our product line and the company itself have grown considerably, the products are still designed and manufactured in our factory in Sydney, Australia, using the same tried and proven formula of innovative design, strict quality control, and rigorous testing. We have invested in our research facility manufacturing equipment and staff training to ensure our products continue to perform up to and beyond your expectations. At Turbosmart, we do not believe in cutting corners and half-measures. We do not accept anything short of perfection - and neither should you.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVehicle Specific Flange\u003c\/li\u003e\u003c\/ul\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062387028186,"sku":"TURTS-0205-1009","price":409.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/24a5380cc889bf4f510fa16a7c33bea6__64468.1640208523.1280.1280.jpg?v=1781529988"},{"product_id":"turbosmart-bov-dual-port-subaru-black-ts-0205-1016","title":"Turbosmart BOV Dual Port Subaru-Black - TS-0205-1016","description":"\u003cp\u003eEasy to install and set up, the Turbosmart Dual Port BOV to suit Subaru features sequential ports for quiet operation on mild boost and full performance at full boost.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062385586394,"sku":"TURTS-0205-1016","price":409.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/86b64e9a0196fb949adcdb09852b53c5__70376.1640208525.1280.1280.jpg?v=1781529988"},{"product_id":"turbosmart-bov-vee-pro-port-subaru-black-ts-0205-1136","title":"Turbosmart BOV Vee PRO Port Subaru-Black - TS-0205-1136","description":"\u003cp\u003eRedesigned from the ground up, the new Vee Port Pro suit Subaru is 20% smaller and 33% lighter than its predecessor. 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An ideal choice for street-tuned WRXs.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062385651930,"sku":"TURTS-0205-1136","price":252.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/f281859fe7dc5a3c8fb3cdd5c08714f5__71384.1640208526.1280.1280.jpg?v=1781529989"},{"product_id":"turbosmart-bov-dual-port-subaru-blue-ts-0205-1015","title":"Turbosmart BOV Dual Port Subaru-Blue - TS-0205-1015","description":"\u003cp\u003eEasy to install and set up, the Turbosmart Dual Port BOV to suit Subaru features sequential ports for quiet operation on mild boost and full performance at full boost.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062385783002,"sku":"TURTS-0205-1015","price":409.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/cb5f1a1aba70776e3f204efc21f91dc8__20137.1640208524.1280.1280.jpg?v=1781529990"},{"product_id":"turbosmart-bov-supersonic-subaru-black-ts-0205-1316","title":"Turbosmart BOV Supersonic Subaru -Black - TS-0205-1316","description":"\u003cp\u003eEasy to Install and Setup, Turbosmart Supersonic BOV. 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The Smart Port system involves a new piston manufacturing process utilizing specialized alloys and coatings and a revolutionary new vent-to-atmosphere trumpet design. These unique designs allow for a swift response while providing enhanced sealing. 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Confirm any tune of recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Relief Pressure\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap features adjustable spring tension, which allows for an adjustment when the blow-off valve vents. A looser setting will make it act smooth and more like stock. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining the sir within the boost system without reducing turbo response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Flow Control\u003c\/strong\u003e\u003cbr\u003eThe unique design allows you to control the volume of air released when the blow-off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surges. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable BPV. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Maintenance\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special tools required and maintenance can be performed without removing the bypass valve from the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDirect Fir \u0026amp; Pre-Set Adjustment\u003c\/strong\u003e\u003cbr\u003eIncluded with every PERRIN BPV are the necessary components to make this a direct bolt-on for your WRX. Each bypass valve is pre-set out of the box to work perfectly with every application, so no adjustment is required.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap, piston \u0026amp; flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV body comes in a red anodized finish and the cap comes black anodized. The anodizing keeps the bypass valve looking great during its lifespan. The body and cap are pad-printed in vibrant lettering to make it easier to read.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN BPV\u003c\/li\u003e\n\u003cli\u003e(1) 24\" Hose\u003c\/li\u003e\n\u003cli\u003e(1) 12\" Hose\u003c\/li\u003e\n\u003cli\u003eAll Hardware for Installation\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062411964634,"sku":"PERPSP-TAC-610RD","price":236.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-TAC-610RD__16282.1662475078.1280.1280.jpg?v=1781530021"},{"product_id":"perrin-blow-off-valve-kit-recirculation-only-for-2002-07-subaru-wrx-04-21-sti-red-psp-tac-600rd","title":"PERRIN Blow Off Valve Kit Recirculation Only For 2002-07 Subaru WRX, 04-21 STI - Red - PSP-TAC-600RD","description":"\u003ch2 style=\"text-align:center;\"\u003eBYPASS VALVE\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eAdjustable relief pressure and flow control make fine-tuning on the fly simple and quick with the PERRIN BOV\/BPV.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHigh Flow\u003c\/strong\u003e\u003cbr\u003eWith large 1.225\" inlets and outlets, the PERRIN BPV is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Dont be fooled by giant oversized bypass valves, these inlet and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecirculation Is Job #1\u003c\/strong\u003e\u003cbr\u003eit is vital that a blow off valve for your WRX recirculates the air back to the intake track to maintain proper air-fuel ratio and drivability between shifts. While this can be set up as a vent-to-atmosphere style blow off valve, PERRIN only recommends that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor). \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune of recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Relief Pressure\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap features adjustable spring tension, which allows for an adjustment when the blow-off valve vents. A looser setting will make it act smooth and more like stock. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining the sir within the boost system without reducing turbo response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Flow Control\u003c\/strong\u003e\u003cbr\u003eThe unique design allows you to control the volume of air released when the blow-off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surges. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable BPV. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Maintenance\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special tools required and maintenance can be performed without removing the bypass valve from the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDirect Fir \u0026amp; Pre-Set Adjustment\u003c\/strong\u003e\u003cbr\u003eIncluded with every PERRIN BPV are the necessary components to make this a direct bolt-on for your WRX. Each bypass valve is pre-set out of the box to work perfectly with every application, so no adjustment is required.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap, piston \u0026amp; flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV body comes in a red anodized finish and the cap comes black anodized. The anodizing keeps the bypass valve looking great during its lifespan. The body and cap are pad-printed in vibrant lettering to make it easier to read.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN BPV\u003c\/li\u003e\n\u003cli\u003e(1) 24\" Hose\u003c\/li\u003e\n\u003cli\u003e(1) 12\" Hose\u003c\/li\u003e\n\u003cli\u003eAll Hardware for Installation\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062413734106,"sku":"PERPSP-TAC-600RD","price":236.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-TAC-600RD__38401.1667577657.1280.1280.jpg?v=1781530020"},{"product_id":"perrin-blow-off-valve-kit-recirculation-only-for-2015-21-subaru-wrx-red-psp-tac-615rd","title":"PERRIN Blow Off Valve Kit Recirculation Only For 2015-21 Subaru WRX - Red - PSP-TAC-615RD","description":"\u003ch2 style=\"text-align:center;\"\u003eBYPASS VALVE FOR 2015-2021 WRX\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eAdd horsepower, quicker response, and reliability with the PERRIN BOV\/BPV. A must-have replacement for the leaky, slow responding, and plastic OEM blow off valve.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHigh Flow\u003c\/strong\u003e\u003cbr\u003eThe tiny outlet on the OEM BOV restricts the rate at which boost can be vented. Cars running higher boost levels and larger turbos can experience compressor surge, damaging your turbo. The PERRIN BPV has a much larger outlet and is fully adjustable, eliminating this concern.\u003cbr\u003e\u003cbr\u003eWith large inlets and outlets, the PERRIN BPV is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Don't be fooled by giant oversized blow-off valves, these inlets and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEssential For Proper Performance\u003c\/strong\u003e\u003cbr\u003eDuring testing, it was determined that until approximately 3 psi of boost is reached, the OEM blow off valve does not seal. This leads to a loss in horsepower and slower response from your turbo. The PERRIN BPV solves this problem with a proper seal as well as being fully adjustable. This means faster response times, consistent boost, and overall better drivability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Relief Pressure\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap features adjustable spring tension, which allows for an adjustment when the blow-off valve vents. A looser setting will make it act smooth and more like stock. Setting harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining the air within the boost system without reducing turbo response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Flow Control\u003c\/strong\u003e\u003cbr\u003eThe unique design allows you to control the volume of air release when the blow-off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surges. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable bypass valve.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecirculation Is Job #1\u003c\/strong\u003e\u003cbr\u003eIt is vital that a bypass valve for your WRX recirculates the air back to the intake track to maintain proper air-fuel ratio and drivability between shifts. While this can be set up as a vent-to-atmosphere style blow-off valve, PERRIN only recommend that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor).\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Maintenance\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special told required and maintenance can be performed without removing the blow-off valve from the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDirect Fit \u0026amp; Pre-Set Adjustment\u003c\/strong\u003e\u003cbr\u003eIncluded with every PERRIN BPV are the necessary components to make this a direct bolt-on for your WRX. Each bypass valve is pre-set out of the box to work perfectly with every application, so no adjustment is required.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap, piston \u0026amp; flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block of aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV body comes with a red anodized finish and the cap is black anodized. The anodized keeps the bypass valve looking great during its lifespan. The bypass valve body and cap are laser engraved in vibrant lettering to make it easier to read.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN BPV\u003c\/li\u003e\n\u003cli\u003e(1) Plastic Connector\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062414061786,"sku":"PERPSP-TAC-615RD","price":236.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-TAC-615RD__97609.1662136233.1280.1280.jpg?v=1781530021"},{"product_id":"perrin-blow-off-valve-kit-recirculation-only-for-2002-07-subaru-wrx-04-21-sti-black-psp-tac-600bk","title":"PERRIN Blow Off Valve Kit Recirculation Only For 2002-07 Subaru WRX, 04-21 STI - Black - PSP-TAC-600BK","description":"\u003ch2 style=\"text-align:center;\"\u003eBYPASS VALVE\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eAdjustable relief pressure and flow control make fine-tuning on the fly simple and quick with the PERRIN BOV\/BPV.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHigh Flow\u003c\/strong\u003e\u003cbr\u003eWith large 1.225\" inlets and outlets, the PERRIN BPV is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Dont be fooled by giant oversized bypass valves, these inlet and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecirculation Is Job #1\u003c\/strong\u003e\u003cbr\u003eit is vital that a blow off valve for your WRX recirculates the air back to the intake track to maintain proper air-fuel ratio and drivability between shifts. While this can be set up as a vent-to-atmosphere style blow off valve, PERRIN only recommends that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor). \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune of recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Relief Pressure\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap features adjustable spring tension, which allows for an adjustment when the blow-off valve vents. A looser setting will make it act smooth and more like stock. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining the sir within the boost system without reducing turbo response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Flow Control\u003c\/strong\u003e\u003cbr\u003eThe unique design allows you to control the volume of air released when the blow-off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surges. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable BPV. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Maintenance\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special tools required and maintenance can be performed without removing the bypass valve from the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDirect Fir \u0026amp; Pre-Set Adjustment\u003c\/strong\u003e\u003cbr\u003eIncluded with every PERRIN BPV are the necessary components to make this a direct bolt-on for your WRX. Each bypass valve is pre-set out of the box to work perfectly with every application, so no adjustment is required.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap, piston \u0026amp; flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV body comes in a black anodized finish and the cap comes black anodized. The anodizing keeps the bypass valve looking great during its lifespan. The body and cap are pad-printed in vibrant lettering to make it easier to read.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN BPV\u003c\/li\u003e\n\u003cli\u003e(1) 24\" Hose\u003c\/li\u003e\n\u003cli\u003e(1) 12\" Hose\u003c\/li\u003e\n\u003cli\u003eAll Hardware for Installation\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062412062938,"sku":"PERPSP-TAC-600BK","price":236.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-TAC-600BK__99565.1662474789.1280.1280.jpg?v=1781530021"},{"product_id":"perrin-blow-off-valve-kit-recirculation-only-for-2008-14-subaru-wrx-black-psp-tac-610bk","title":"PERRIN Blow Off Valve Kit Recirculation Only For 2008-14 Subaru WRX - Black - PSP-TAC-610BK","description":"\u003ch2 style=\"text-align:center;\"\u003eBYPASS VALVE\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eAdjustable relief pressure and flow control make fine-tuning on the fly simple and quick with the PERRIN BOV\/BPV.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHigh Flow\u003c\/strong\u003e\u003cbr\u003eWith large 1.225\" inlets and outlets, the PERRIN BPV is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Dont be fooled by giant oversized bypass valves, these inlet and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecirculation Is Job #1\u003c\/strong\u003e\u003cbr\u003eit is vital that a blow off valve for your WRX recirculates the air back to the intake track to maintain proper air-fuel ratio and drivability between shifts. While this can be set up as a vent-to-atmosphere style blow off valve, PERRIN only recommends that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor). \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune of recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Relief Pressure\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap features adjustable spring tension, which allows for an adjustment when the blow-off valve vents. A looser setting will make it act smooth and more like stock. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining the sir within the boost system without reducing turbo response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdjustable Flow Control\u003c\/strong\u003e\u003cbr\u003eThe unique design allows you to control the volume of air released when the blow-off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surges. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable BPV. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Maintenance\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special tools required and maintenance can be performed without removing the bypass valve from the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDirect Fir \u0026amp; Pre-Set Adjustment\u003c\/strong\u003e\u003cbr\u003eIncluded with every PERRIN BPV are the necessary components to make this a direct bolt-on for your WRX. Each bypass valve is pre-set out of the box to work perfectly with every application, so no adjustment is required.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV cap, piston \u0026amp; flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003cbr\u003eThe PERRIN BPV body comes in a black anodized finish and the cap comes black anodized. The anodizing keeps the bypass valve looking great during its lifespan. The body and cap are pad-printed in vibrant lettering to make it easier to read.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN BPV\u003c\/li\u003e\n\u003cli\u003e(1) 24\" Hose\u003c\/li\u003e\n\u003cli\u003e(1) 12\" Hose\u003c\/li\u003e\n\u003cli\u003eAll Hardware for Installation\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062412030170,"sku":"PERPSP-TAC-610BK","price":236.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-TAC-610BK__51333.1662474967.1280.1280.jpg?v=1781530021"},{"product_id":"turbosmart-kompact-dual-port-bov-for-2004-21-subaru-wrx-sti-ts-0203-1015","title":"Turbosmart Kompact Dual Port BOV For 2004-21 Subaru WRX STI - TS-0203-1015","description":"\u003ch2 style=\"text-align:center;\"\u003eKOMPACT DUAL PORT BLOW OFF VALVE SUIT SUBARU\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eDual outlet-type BOV. The Kompact Dual Port vents to the atmosphere and back into the air intake. Ports with sequential timing allow quieter operation during everyday driving while still offering the performance and sound of a vent-to-atmosphere BOV when the going gets more challenging. \u003cbr\u003e\u003cbr\u003eThe standard blow-off valves on these cars are made of plastic, unlike the highly durable machined billet construction of the Kompact. The standard valves are often not up to eliminating damaging compressor surge, and as the car ages, the plastic becomes brittle and can crack, causing severe boost leaks. This prevents the turbo from reaching its full potential, robbing you of performance. \u003cbr\u003e\u003cbr\u003eWith its anodized billet aluminum body and lightweight alloy piston, the Kompact offers extreme durability, superior response and excellent boost-holding capability for its size.\u003cbr\u003e\u003cbr\u003eThe Kompact Dual Port is perfect for owners of stock to lightly-modified cars looking for the classic vent-to-atmosphere BOV sound in an OEM-replacement, space-efficient package.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":48062459183322,"sku":"TURTS-0203-1015","price":256.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/5dfdb8666aaaef7f891af8528ee9d215__23416.1758131374.1280.1280.jpg?v=1781530174"},{"product_id":"cobb-lf-bpv-for-2002-07-subaru-wrx-04-21-sti-06-08-fxt-712665","title":"COBB LF BPV For 2002-07 Subaru WRX, 04-21 STI, 06-08 FXT - 712665","description":"\u003ch2 style=\"text-align:center;\"\u003eSUBARU LF BPV WRX 2002-2007, STI 2004-2021, FXT 2006-2008\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003e\u003cstrong\u003eEmissions\u003c\/strong\u003e\u003cbr\u003e50 State Legal.\u003cbr\u003e\u003cbr\u003eThis part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:\u003cbr\u003e\u003cbr\u003eD-660-9\u003cbr\u003eD-660-36\u003cbr\u003eD-660-83\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eDESCRIPTION\u003c\/h2\u003e\u003cp\u003eThe COBB LF BPV is a compact and lightweight by-pass valve that is capable of holding very high boost pressure without leaking. Its updated design reduces control volume by 30% allowing for extremely fast venting of boost when actuated. Innovative engineering and precision manufacturing result in a compact package able to fit in the confines of a tight engine bay. Due to the low weight of the components, the moving parts in the LF BPV have less inertia and can respond faster than heavier components in other bypass valves. This updated design uses a Banjo-fitting vacuum port which provides 360 degree adjustability of hose routing. This results in a simpler install and less potential leak points than the NPT ports. This new design also includes a piston o-ring seal that is twice the diameter of the old design allowing more seal compression and reduced wear. Adjustability of the spring seat is no longer needed due to the updated spring and seal design which provides a 60% increase in clamping force at peak boost while maintaining similar operation at idle and transient loads.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eWHY?\u003c\/h2\u003e\u003cp\u003eA compact and very lightweight bypass valve that is loaded with features and reliably holds high levels of boost without leaks.\u003c\/p\u003e","brand":"COBB","offers":[{"title":"Default Title","offer_id":48062488674522,"sku":"COBB712665","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/83a3a9ff73bcf30c938a776f4acc4729__88383.1674068842.1280.1280.jpg?v=1781530322"},{"product_id":"cobb-lf-bpv-for-2008-14-subaru-wrx-05-09-lgt-09-13-fxt-724665","title":"COBB LF BPV For 2008-14 Subaru WRX, 05-09 LGT, 09-13 FXT - 724665","description":"\u003ch2 style=\"text-align:center;\"\u003eSUBARU LF BPV WRX 2008-2014, FXT 2009-2013, OBXT\/LGT 2005-2009, MAZDASPEED3 2007-2013, MAZDASPEED6 2006-2007\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003e\u003cstrong\u003eEmissions\u003c\/strong\u003e\u003cbr\u003e50 State Legal.\u003cbr\u003e\u003cbr\u003eThis part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:\u003cbr\u003e\u003cbr\u003eD-660-9\u003cbr\u003eD-660-11\u003cbr\u003eD-660-39\u003cbr\u003eD-660-83\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eThe COBB LF BPV is a compact and lightweight by-pass valve that is capable of holding very high boost pressure without leaking. 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