{"title":"Transmission Internals","description":"\u003cp\u003eIAG Performance sells Transmission Internals that is designed to work with your 2002-23 WRX, STI, Forester XT, Legacy GT, and BRZ. We have a large selection of Transmission Internals such as Gear Sets, Synchros, Transfer Gears, and more.\u003c\/p\u003e\n\n\u003cp\u003eHere are just a few of the brands we carry-\n\u003cbr\u003eAlbins, IAG Performance, Pfitzner, RalliSpec\u003c\/p\u003e","products":[{"product_id":"iag-replacement-yoke-and-universal-joint-set-for-transfer-gears-iag-drv-1000-iag-drv-1010","title":"IAG Replacement Yoke and Universal Joint Set for Transfer Gears IAG-DRV-1000, IAG-DRV-1010","description":"\u003cp\u003eIAG Replacement Yoke and Universal Joint Set for Transfer Gears IAG-DRV-1000, IAG-DRV-1010\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062307270874,"sku":"IAG-RPL-1000","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apijwawek__20296.1633558569.1280.1280.jpg?v=1781529596"},{"product_id":"iag-performance-chromoly-transfer-gears-for-1-1-1-transmission-06-6-speed-sti","title":"IAG Performance Chromoly Transfer Gears For 1.1:1 Transmission (06+ 6-Speed STI)","description":"\u003cp\u003eThe IAG Chromoly Transfer Gear Set is specifically engineered to strengthen the weak points in the STI 6 speed transmission. When a powerful STI launches aggressively at the track the output shaft progressively twists and weakens. After multiple launches, the output shaft breaks where the driveshaft yoke connects. \u003cbr\u003e\u003cbr\u003eIAG's upgraded transfer gear set is capable of handling these immense loads by improving the gear material and redesigning the parts at the weakest points. The gears are manufactured from Chromoly which is known for its improved hardness and strength. The output shaft diameter was increased and the splines were enlarged and lengthened then matched to an upgraded yoke designed to mate to an aftermarket performance driveshaft. The IAG transfer gears were tested on Subaru drag vehicles producing 1200 WHP\/800 WTQ at 3000+ LBS. \u003cbr\u003e\u003cbr\u003eThis transfer gear set is a 1.1:1 For the 2006-21 Subaru STI 6 speed. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRequirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"letter-spacing: normal\"\u003e\n\u003cli\u003eDriveshaft Shop Driveshaft or ACPT Driveshaft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eGear Set Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChromoly Driven Gear\u003c\/li\u003e\n\u003cli\u003eChromoly Output Shaft\u003c\/li\u003e\n\u003cli\u003eUpgraded Yoke\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty U-Joint\u003c\/li\u003e\n\u003cli\u003eU-Joint Outside Snap Rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eFitment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGear Sets are specific to transmission applications please choose accordingly.\u003c\/li\u003e\n\u003cli\u003e*Please note that you may experience some drivetrain \"whine\" with these gears installed. This noise is completely normal. The noise is due to the \"dog style\" engagement of the teeth between gears\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eReplacement Parts:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe universal joint and transfer yoke should be checked regularly for signs of wear in vehicles used for competition. These parts are consumable and available separately (PN# IAG-RPL-1000).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062311923930,"sku":"IAG-DRV-1010","price":1499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apinv2fu5__10225.1633558611.1280.1280.jpg?v=1781529620"},{"product_id":"iag-performance-chromoly-transfer-gears-for-1-1-transmission-04-05-6-speed-sti","title":"IAG Performance Chromoly Transfer Gears For 1:1 Transmission (04-05 6-Speed STI)","description":"\u003cp\u003eThe IAG Chromoly Transfer Gear Set is specifically engineered to strengthen the weak points in the STI 6 speed transmission. When a powerful STI launches aggressively at the track the output shaft progressively twists and weakens. After multiple launches, the output shaft breaks where the driveshaft yoke connects. \u003cbr\u003e\u003cbr\u003eIAG's upgraded transfer gear set is capable of handling these immense loads by improving the gear material and redesigning the parts at the weakest points. The gears are manufactured from Chromoly which is known for its improved hardness and strength. The output shaft diameter was increased and the splines were enlarged and lengthened then matched to an upgraded yoke designed to mate to an aftermarket performance driveshaft. \u003cbr\u003e\u003cbr\u003eThis transfer gear set is 1:1 for the (2004-05 STI)The IAG transfer gears were tested on Subaru drag vehicles producing 1200 WHP\/800 WTQ at 3000+ LBS. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRequirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDriveshaft Shop Driveshaft or ACPT Driveshaft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eGear Set Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChromoly Driven Gear\u003c\/li\u003e\n\u003cli\u003eChromoly Output Shaft\u003c\/li\u003e\n\u003cli\u003eUpgraded Yoke\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty U-Joint\u003c\/li\u003e\n\u003cli\u003eU-Joint Outside Snap Rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eFitment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGear Sets are specific to transmission applications please choose accordingly.\u003c\/li\u003e\n\u003cli\u003e*Please note that you may experience some drivetrain \"whine\" with these gears installed. This noise is completely normal. The noise is due to the \"dog style\" engagement of the teeth between gears\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eReplacement Parts:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe universal joint and transfer yoke should be checked regularly for signs of wear in vehicles used for competition. These parts are consumable and available separately (PN# IAG-RPL-1000).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062314283226,"sku":"IAG-DRV-1000","price":1499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apiqbbymm__99115.1633558639.1280.1280.jpg?v=1781529632"},{"product_id":"ppg-v2-subaru-1st-4th-drag-gear-set-26-spline-07-21-sti","title":"PPG V2 1st-4th Drag Gear Set w\/ 26 Spline for 2007-21 Subaru STI 6 Speed","description":"\u003cp\u003eThe PPG SU-6S4GV2DB-GA 1st-4th Drag Gear Set is manufactured to suit the OEM Subaru 6 speed transmission case. Designed as a drag racing specific gear set it features huge gears, which is the perfect drivetrain upgrade for manual transmission powered Subaru's heading into the 7 second ET bracket.​\u003c\/p\u003e\n\u003cp\u003eThe Pfitzner SU-6S4GV2DB-GA 4-speed Drag racing gear set has been developed for SUBARU WRX STI 6 speed gearbox. It has a T56 style 26-spline 2-piece input shaft along with its dog-tooth profile and straight cut gears enables it to handle dramatic increases in power - as well as cope with the stresses caused by the harsh acceleration and excessive levels of grip that are experienced only in Drag racing – especially in the case of four-wheel-drive cars.\u003c\/p\u003e\n\u003cp\u003eThe gear set has been designed to provide drivers with instant gear selection, clutch-less shifting and a perfect ratio combination that is matched to the final-drive, wheel and tyre sizes – qualities that make it ideal for Drag racing. However, before being offered for sale, the SU-6S4GV2DB-GA system was put through a rigorous test and development program and then proven in real motorsport conditions to ensure it would cope with the extreme demands of this category of motorsport.\u003c\/p\u003e\n\u003cp\u003ePPG’s arduous prototyping process gives its products their legendary strength, durability and reliability. Therefore, the SU-6S4GV2DB-GA gear set and final drive delivers an outstanding performance at a realistic price and is the only transmission system that has RATIO - 3.077 - 1.875 - 1.350 - 0.957 been able to propel a SUBARU STI WRX over a quarter-mile into 7-second times. No wonder it is regarded as the best of its kind and is now the product of choice for Drag racers who use Subaru's – some of them running engines that produce well in excess of 1000hp!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eT56 26-Spline 2-piece Input Shaft (Increased Strength) - Requires Special Clutch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pfitzner","offers":[{"title":"Default Title","offer_id":48062440407258,"sku":"SU-6S4GV2DB-GA-07UP","price":9999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/SU-6S4GV2DB-GA-07UP-01__16078.1725558453.1280.1280.jpg?v=1781530125"},{"product_id":"ppg-v2-1st-4th-drag-gear-set-w-oem-spline-for-2007-21-subaru-sti-6-speed","title":"PPG V2 1st-4th Drag Gear Set w\/ OEM Spline for 2007-21 Subaru STI 6 Speed","description":"\u003cp\u003eThe PPG SU-6S4GV2DB-OEM-GA 1st-4th Drag Gear Set to suit the OEM Subaru 6 speed casing is a drag racing specific gear set only. Featuring huge gears, this set is the perfect drivetrain upgrade for manual transmission powered Subaru's heading into the 7 second ET bracket.​\u003c\/p\u003e\n\u003cp\u003eThe Pfitzner SU-6S4GV2DB-OEM-GA 4-speed Drag racing gear set has been developed for SUBARU WRX STI 6 speed gearbox. It has a OEM spline 2-piece input shaft along with its dog-tooth profile and straight cut gears enables it to handle dramatic increases in power - as well as cope with the stresses caused by the harsh acceleration and excessive levels of grip that are experienced only in Drag racing – especially in the case of four-wheel-drive cars.\u003c\/p\u003e\n\u003cp\u003eThe gear set has been designed to provide drivers with instant gear selection, clutch-less shifting and a perfect ratio combination that is matched to the final-drive, wheel and tyre sizes – qualities that make it ideal for Drag racing. However, before being offered for sale, the SU-6S4GV2DB-OEM-GA system was put through a rigorous test and development programme and then proven in live motorsport conditions to ensure it would cope with the extreme demands of this category of motorsport.\u003c\/p\u003e\n\u003cp\u003ePPG’s arduous prototyping process gives its products their legendary strength, durability and reliability. Therefore, the SU-6S4GV2DB-OEM-GA gear set and final drive delivers an outstanding performance at a realistic price and is the only transmission system that has RATIO - 3.077 - 1.875 - 1.350 - 0.957 been able to propel a SUBARU STI WRX over a quarter-mile into 7-second times. No wonder it is regarded as the best of its kind and is now the product of choice for Drag racers who use Subaru's – some of them running engines that produce well in excess of 1000hp!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Spline 2-Piece Input Shaft - Works with any Subaru Clutch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pfitzner","offers":[{"title":"Default Title","offer_id":48062440603866,"sku":"SU-6S4GV2DB-OEM-GA-07UP","price":9999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/SU-6S4GV2DB-GA-07UP-01__11778.1725559986.1280.1280.jpg?v=1781530126"},{"product_id":"ppg-subaru-6spd-billet-selector-fork-kit-finger-for-2007-21-subaru-sti-6-speed","title":"PPG Billet Selector Forks \u0026 Finger Kit for 2007-21 Subaru STI, 07-09 LGT Spec B  6 Speed","description":"\u003cp\u003eThis brand new product is designed to replace the stock selector forks and finger in the 6 speed Subaru gearbox. Targeted for street use customers, this product will also suit drag and circuit work where the OEM Gears are still being used.\u003c\/p\u003e\n\u003cp\u003eThese can be bought as a full replacement set or the individual part needed can be bought!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eKey Benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvide a positive and repeatable gear shift that reduces poor feel.\u003c\/li\u003e\n\u003cli\u003eIncreased strength and durability.\u003c\/li\u003e\n\u003cli\u003eAerospace Grade Steel\u003c\/li\u003e\n\u003cli\u003eFits all 6 speed Subaru Sti gearboxes with OEM Gears.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eKits Set Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1st - 2nd Selector Fork\u003c\/li\u003e\n\u003cli\u003e3rd - 4th Selector Fork\u003c\/li\u003e\n\u003cli\u003e5th - 6th Selector Fork\u003c\/li\u003e\n\u003cli\u003eReverse Finger\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e*Note - Will Not Work with dog boxes\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Pfitzner","offers":[{"title":"Default Title","offer_id":48062444241114,"sku":"SU-6SPD-SHIFT-KIT-GA","price":1699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/SU-6SPD-SHIFT-KIT-GA-01__31396.1725560536.1280.1280.jpg?v=1781530134"},{"product_id":"iag-6mt-1-6-brass-synchro-gear-set-with-gears-4-6-carbon-faced-brass-2008-sti","title":"IAG 6 Speed Synchro Set 1st - 3rd Brass \/ 4th - 6th Carbon Faced - Brass for 08-21 STI","description":"\u003cp\u003eRebuilding your Subaru 6MT transmission or upgrading your gears? The IAG 6 Speed Synchro package for the 2008-21 STI includes a 1st, 2nd and 3rd gear brass syncronizer set as well as 4th, 5th and 6th gear carbon faced brass baulk rings. The OEM carbon faced baulk rings are known for improved shifting and longevity and are a popular upgrade when rebuilding GR and VA STI 6 Speeds.   \u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062462197978,"sku":"IAG-DRV-1040","price":789.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-DRV-1040-01__53551.1654608222.1280.1280.jpg?v=1781530208"},{"product_id":"iag-competition-series-transmission-shift-finger-with-spring-pin-for-04-21-subaru-sti","title":"IAG Competition Series Transmission Shift Finger with Spring Pin for 04-21 Subaru STI","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG COMPETITION SERIES TRANSMISSION SHIFT FINGER WITH SPRING PIN FOR 04-21 SUBARU STI\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-979.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eENGINEERED FOR STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe Subaru STI six speed transmission is reknowned for it's strength, but it's not bulletproof. One common point of failure is the OEM shift finger. This small piece can cause big problems when it breaks. The IAG Shift Finger is designed to be significantly stronger than the OEM unit. By adding additional support to the finger and utilizing specialized tool steel this unit is designed to provide years of trouble-free operation.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-980.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIMPROVED MATERIALS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThis part is constructed of A2 tool steel. AISI A2 Tool Steel is an air-hardening grade of steel that contains 5% chromium. A2 is noted for its toughness and exceptional dimensional stability in heat treatment. These characteristics make it a versatile tool steel which is perfect for this application.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-981.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOEM FITMENT\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Shift Finger is designed to fit perfectly inside the OEM STI 6 speed transmission. The included FHI spring pin fits perfectly and allows installation without any internal transmission modifications. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-982.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCNC MACHINED IN THE USA\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe're proud to say that our products are manufactured right here in our facility in Westminster, MD. IAG Performance was founded in 2007 as an innovator in Subaru performance products. We offer a wide variety of problem-solving aftermarket products. Our friendly, USA based, support staff is also here to help with any installation questions you might have.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062478319834,"sku":"IAG-DRV-1043","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-DRV-1043-01__06044.1664802550.1280.1280.jpg?v=1781530273"},{"product_id":"rallispec-jdm-close-ratio-5th-6th-gear-set","title":"RalliSpec JDM Close Ratio 5th\/6th Gear Set for 2004-06 Subaru STI","description":"\u003cp\u003eThe RalliSpec Gear Set for the USDM STI 6 Speed converts to the shorter\/closer ratio 5th\/6th JDM gearing. The gear change reduces the 4th-5th shift bog and allows for a more useable 5th and 6th gear. Best suited for use with USDM MY04-06 gearing. Kit includes 5th drive gear, 6th drive gear, 5th\/6th driven gear cluster, and adapter keyway.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGear Ratios:\u003c\/strong\u003e 1.062 (5th) \/ 0.842 (6th)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Subaru\/RalliSpec\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Subaru STI MY01-06\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTechnical FAQ:\u003c\/p\u003e\n\u003cp\u003eDoes this kit come with the carbon synchros for 4th,5th, and 6th?\u003c\/p\u003e\n\u003cp\u003eNo. RalliSpec used to offer a kit with the carbon synchros but have split it up. The carbon synchros can be purchased separately.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIs it possible to install these gears on MY07 and newer STI or on Legacy Spec B models?\u003c\/p\u003e\n\u003cp\u003eYes, its possible to install them but the ratios will not work well. These models have a taller 2nd, 3rd, and 4th gear ratios. The 4th gear to 5th gear ratio difference will be very small making the 4th-5th shift almost pointless.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhich is the better option: the close ratio 5th\/6th kit or the tall ratio 2nd-6th kit?\u003c\/p\u003e\n\u003cp\u003eIt depends on the application. The close ratio 5th\/6th is more suitable for rally applications and shorter tracks. The 2nd-6th kit is more suitable for longer tracks and drag racing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhat are the effects of a shorter 6th gear on the highway?\u003c\/p\u003e\n\u003cp\u003eThe 6th gear ratio difference is about 10% so there will be about a 10% increase in rpms for the same road speed. This will have some negative effect on the highway fuel economy.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhat is the purpose of the \"adapter keyway\"?\u003c\/p\u003e\n\u003cp\u003eSubaru has changed the keyway width for the driven gear shaft from wide to narrow. They have discontinued selling many of the wide keyway gears and normally this would require replacing the driven gear shaft and 3rd\/4th driven gear at the same time which is a significant additional cost. RalliSpec is producing an adapter keyway that allows a narrow keyway gear to be installed on to a wide keyway shaft. Subaru began using the narrow keyway on the USDM Spec B and MY07 and newer STI models so basically all applications that this set is suitable for require using the adapter keyway.\u003c\/p\u003e","brand":"RalliSpec","offers":[{"title":"Default Title","offer_id":48062481236186,"sku":"RST-1145","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/RST-1145-01__57285.1669989435.1280.1280.jpg?v=1781530287"},{"product_id":"iag-1st-6th-carbon-synchro-set-for-2008-21-subaru-sti-6-speed","title":"IAG 1st - 6th Carbon Synchro Set for 2008-21 Subaru STI 6-Speed","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG PERFORMANCE 1ST-6TH CARBON SYNCHRO SET FOR 2008 + STI\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/e6v62VEg78k?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=e6v62VEg78k\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Performance 1st - 6th Carbon Synchro Set for 2008-21 Subaru STI 6-Speed\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ffdad87d-636b-487a-b91a-ddaf67944351\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIMPROVED SHIFTING \u0026amp; GREATER RELIABILITY\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWhether you are rebuilding your six speed manual Subaru STI transmission or looking to upgrade your gearing, IAG’s 1st-6th Carbon Synchro Set will provide smoother shifting and increased reliability. Aggressive driving and shifting can lead to worn out or damaged synchros, which in turn, can cause gear grinding or even eventual damage to the transmission housing. The IAG Carbon Synchro Set is an essential upgrade for Subaru drivers looking to replace worn out synchros and to improve the shifting and performance of their STI. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Performance 1st - 6th Carbon Synchros for 2008+ STI 6MT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/f85848c3-b730-400b-8fa8-0241ecfc12af\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eENGINEERED FOR STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Carbon Synchro Set features dual carbon friction surfaces, which not only prolong the lifespan of the synchro sleeve and gear teeth, but it also allows for quicker and more precise shifting. The IAG Synchros are composed of superior Japanese brass, which is known for its high wear resistance, and its ability to be intricately machined. Our Carbon Synchro Set is precision machined for a superior shift feel and for strength.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Carbon Synchro Rings for 2008-21 STI 6MT \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/5c1aaa51-34fa-4c3a-98ca-f8caf32b11fd\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMORE SURFACE CONTACT\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG’s Carbon Synchro Set was designed to provide more surface contact between the gears and the synchros, decreasing gear shift times by increasing grip for quicker engagement. This also improves the driving experience by requiring less force to engage the gear.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1st - 6th Carbon Synchro Set for 2008-21 STI 6-Speed Transmission\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/58197427-e22a-4c39-966e-28dc3e336a13\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFULL SET INCLUDES ALL SYNCHROS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1st-6th Carbon Synchro Set comes as one complete kit. This Gear Set includes the first, second, third, fourth, fifth and sixth gear carbon-faced brass synchros. There is no need to source or piece together incomplete synchro sets or hunt for hard to find OEM parts; everything you need is contained in the IAG 1st-6th Carbon Synchro Set.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062516232410,"sku":"IAG-DRV-1044","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-DRV-1044-01__12192.1693937280.1280.1280.jpg?v=1781530456"},{"product_id":"iag-1st-6th-carbon-synchro-set-for-2004-early-2006-subaru-sti-6-speed","title":"IAG 1st - 6th Carbon Synchro Set for 2004 - Early 2006 Subaru STI 6-Speed","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG PERFORMANCE 1ST-6TH CARBON SYNCHRO SET FOR 2004 - EARLY 2006 STI\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/e6v62VEg78k?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=e6v62VEg78k\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Carbon Synchro Set for 2004 - Early 2006 STI 6 Speed\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/41a6cdc3-3100-4f0d-a3cb-eea3b71d8aa3\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSHIFTS BETTER, LASTS LONGER\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG’s Carbon Synchro Set is an essential upgrade if you are rebuilding your transmission or looking to get a little more performance out of your 2004-2006 Subaru STI. Worn out synchros, gear grinding and even transmission housing damage can occur from aggressive driving, forceful shifting, overuse, or even normal wear and tear. Our Carbon Synchro Set offers smoother shifting and improved reliability, it is a vital enhancement for your Subaru’s transmission.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Carbon Synchro Set for 04-06 STI 6SPD\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/0ed2f225-a052-48f2-bfb4-1d65adb7a1eb\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eDESIGNED FOR DURABILITY\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG’s STI 6 Speed Synchro Gear Set features dual carbon friction surfaces. This not only extends the life of the synchro sleeve and gear teeth but also allows for faster and more precise shifting. The IAG Synchros are made from Japanese brass, which is known for durability and its ability to be intricately machined. Our Carbon Faced Brass Synchro Set is precision machined, providing an enhanced shift feel and less wear between moving parts. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1st - 6th Carbon Synchros for 04-06 Subaru STI 6MT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/39541a28-6cff-42a2-a0e6-f674f775cceb\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eINCREASED SURFACE CONTACT\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG Synchro Set was designed to maximize surface contact between the gears and synchros. This decreases gear shift times in your Subaru STI 6 speed transmission by increasing the grip for quicker engagement. Increased surface contact also enhances the driving experience by demanding less effort to engage the gear.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1st - 6th Carbon Synchro Set for 2004-06 STI 6-Speed Manual Transmission\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/29eca5f4-f9df-4ddd-9eec-2d5b4db57227\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eALL SYNCHROS INCLUDED IN SET\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eUnlike the available OEM Synchros, this Synchro Set includes the first, second, third, fourth, fifth and sixth gear carbon synchros. There’s no need to search for missing synchros or hunt down rare OEM parts. Everything you need comes in the IAG Six Speed Carbon Synchro Set.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062516297946,"sku":"IAG-DRV-1045","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-DRV-1045-01__87519.1694011515.1280.1280.jpg?v=1781530457"},{"product_id":"iag-1st-6th-carbon-synchro-set-for-late-2006-07-sti-07-09-lgt-spec-b-6-speed","title":"IAG 1st - 6th Carbon Synchro Set for Late 2006-07 STI, 07-09 LGT Spec B 6-Speed","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 1ST-6TH CARBON SYNCHRO SETFOR 2006-07 STI \u0026amp; 2007-09 LGT SPEC B\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/e6v62VEg78k?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=e6v62VEg78k\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Performance 1st - 6th Carbon Synchro Set For Late 2006-07 STI \u0026amp; 2007-09 LGT Spec B \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/3ce3eeef-1d11-4fa9-9089-a495ba69f2b1\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIMPROVED SHIFTING, LONGER LIFESPAN\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eForceful driving and aggressive shifting can wear down or harm synchros, potentially resulting in gear grinding or even damage to the transmission housing. The IAG Carbon Synchro Set is a great solution and an essential upgrade if you are rebuilding or upgrading the gearing in your Late 2006-2007 STI or 2007-2009 Legacy GT Spec B transmission. IAG’s Synchro Gear Set will give you smoother shifting and improved reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1st - 6th Carbon Synchros for Late 2006-07 STI \u0026amp; 2007-09 LGT Spec B \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/9311c550-1adf-4c9d-a558-884ecb8a0345\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSUPERIOR QUALITY \u0026amp; STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG's Subaru STI 6 Speed Carbon Synchro Set features dual carbon friction surfaces, extending the life of both the synchro sleeve and gear teeth, while also allowing for faster and more precise shifting. The IAG Synchros are made from Japanese brass, which is known for its durability and ability to be intricately machined. Our Carbon Synchro Set is precision machined, resulting in an improved shift feel and reduced wear between moving components.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Carbon Synchros for 06-07 STI \u0026amp; 07-09 LGT Spec B 6-Speed\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/98d24159-7a3c-4ca0-adaf-0db477b3b3e4\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eINCREASED SURFACE CONTACT\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Carbon Synchro Set is designed to have increased surface contact between the gears and the synchros. This allows for quicker gear engagement, which decreases shift times. The increased surface contact also provides a better driving experience by using less effort to change gears.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1st - 6th Carbon Synchro Set For Late 06-07 STI \u0026amp; 07-09 Legacy GT Spec B \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/b63774d8-6e40-45b9-8deb-84506423a028\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eALL SYNCHROS INCLUDED IN SET\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG's Carbon Synchro Gear Set is sold as a complete kit, with all carbon synchros included. This Synchro Set includes the first, second, third, fourth, fifth and sixth gear carbon synchros. No need to hunt for missing synchros or seek out rare OEM parts, the IAG Carbon Synchro Set contains everything you need to upgrade the synchros in your Late 2006-2007 Subaru STI or 2007-2009 Legacy GT Spec B transmission.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062516887770,"sku":"IAG-DRV-1046","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-DRV-1046-01__27764.1694011587.1280.1280.jpg?v=1781530458"},{"product_id":"subaru-3rd-6th-gear-driven-keyway-for-08-24-wrx-08-21-sti","title":"Subaru 3RD-6TH Gear Driven Keyway for 08-24 WRX, 08-21 STI","description":"\u003cp\u003eSubaru 3RD-6TH Gear Driven Keyway for 08-24 WRX, 08-21 STI\u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":48062573576410,"sku":"053107250","price":5.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/053107250-01__97475.1736539142.1280.1280.jpg?v=1781530722"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/collections\/f2f03c7b-921c-4773-9f4f-3413d3dc4e11.png?v=1781714800","url":"https:\/\/www.iagperformance.com\/collections\/drivetrain-transmissions-transmission-internals.oembed","provider":"IAG Performance","version":"1.0","type":"link"}