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Vendor:IAG PerformanceIAG Intake Air Temperature (IAT) Speed Density Kit Universal Fitment
Regular price $99.99Sale price $99.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 3" Aluminum MAF Mounting Flange For 2008-14 Subaru WRX, 2008-21 STI, 2009-13 FXT
Regular price $43.99Sale price $43.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 3" Aluminum MAF Mounting Flange For 2002-07 Subaru WRX, 2004-07 STI
Only 3 leftRegular price $43.99Sale price $43.99 Regular priceUnit price per -
Vendor:Mach VMach V COBB Accessport Vent Mount for 2015-21 Subaru WRX, 15-21 STI, 14-18 FXT
Only 18 leftRegular price $89.00Sale price $89.00 Regular priceUnit price per -
Vendor:Mach VMach V COBB Accessport Vent Mount for 2008-14 Subaru WRX, 08-14 STI, 04-13 FXT
Only 15 leftRegular price $69.00Sale price $69.00 Regular priceUnit price per -
Vendor:Mach VMach V COBB Accessport Vent Mount for 2002-07 Subaru WRX, 04-07 STI
Only 6 leftRegular price $69.00Sale price $69.00 Regular priceUnit price per -
Vendor:COBBCOBB V3 Accessport for 2006-07 Subaru WRX, 04-07 STI, 05-06 LGT, 04-06 FXT - AP3-SUB-002
Regular price $735.00Sale price $735.00 Regular priceUnit price per -
Vendor:COBBCOBB V3 Accessport for 2008-14 Subaru WRX/STI, 07-12 LGT, 07-13 FXT - AP3-SUB-003
Regular price $770.00Sale price $770.00 Regular priceUnit price per -
Vendor:Omni PowerOmni Power 3 Bar Map Sensor For 2006-07 Subaru WRX and 2004-21 STI
Regular price $119.99Sale price $119.99 Regular priceUnit price per -
Vendor:iWireiWire Speed Density Wiring Kit 02-07 WRX, 04-07 STI w/Top Mount
Only 3 leftRegular price $84.99Sale price $84.99 Regular priceUnit price per -
Up to $35.59 OFFVendor:AEMAEM Bosch LSU 4.9 UEGO Replacement Sensor - 30-2004
Only 9 leftRegular price $140.36Sale price $140.36 Regular priceUnit price per$175.95 -
Up to $37.49 OFFVendor:AEMAEM FAE Wideband Uego Replacement Sensor - 30-2404
Only 2 leftRegular price $148.46Sale price $148.46 Regular priceUnit price per$185.95 -
Vendor:Omni PowerOmni Power 4 Bar Map Sensor For 2006-07 Subaru WRX and 2004-21 STI
Regular price $124.99Sale price $124.99 Regular priceUnit price per -
Vendor:Omni PowerOmni Power 4 Bar Map Sensor For 2008-14 Subaru WRX, 2005-09 Legacy GT
Regular price $124.99Sale price $124.99 Regular priceUnit price per -
Vendor:COBBCOBB V3 Accessport For 2022+ Subaru WRX (6MT/CVT) - AP3-SUB-006
Regular price $770.00Sale price $770.00 Regular priceUnit price per -
Vendor:COBBCOBB V3 Accessport for 2002-05 Subaru WRX 2.0L Turbo - AP3-SUB-001
Regular price $735.00Sale price $735.00 Regular priceUnit price per -
Vendor:COBBCOBB Tuning V3 Accessport for 2019-21 Subaru Ascent
Only 1 leftRegular price $770.00Sale price $770.00 Regular priceUnit price per -
Vendor:COBBCOBB V3 Accessport for 2006-07 Subaru WRX, 04-07 STI, 05-06 LGT, 04-06 FXT
Only 1 leftRegular price $735.00Sale price $735.00 Regular priceUnit price per -
Up to $26.79 OFFVendor:AEMAEM Bosch Replacement LSU Replacement UEGO Sensor - 30-2001
Only 3 leftRegular price $106.16Sale price $106.16 Regular priceUnit price per$132.95 -
Vendor:iWireiWire Rear O2 Sensor Extension Harness
Regular price $74.99Sale price $74.99 Regular priceUnit price per -
Up to $37.79 OFFSold OutVendor:AEMAEM Universal Wideband UEGO Sensor with Stainless Manifold Bung Install Kit - 30-2063
Regular price $151.16Sale price $151.16 Regular priceUnit price per$188.95 -
Vendor:COBBCOBB V3 Accessport for 2015-21 Subaru WRX, 2015-21 STI, 2014-20 FXT - AP3-SUB-004
Regular price $770.00Sale price $770.00 Regular priceUnit price per -
Vendor:iWireiWire Hybrid MAF Wiring Kit for 02-07 Subaru WRX , 04-07 STI w/ Top Mount
Regular price $119.99Sale price $119.99 Regular priceUnit price per -
Vendor:iWireiWire Hybrid MAF Wiring Kit for 08-14 Subaru WRX , 08-21 STI w/ Top Mount
Regular price $119.99Sale price $119.99 Regular priceUnit price per -
Vendor:iWireiWire Speed Density Wiring Kit 08-14 WRX, 08-21 STI w/Top Mount
Regular price $99.99Sale price $99.99 Regular priceUnit price per
Engine Management
Shop Subaru engine management parts and tuning accessories at IAG Performance for 2002–2023 WRX, STI, Legacy GT, Forester XT, and BRZ models. Our selection includes tuners, sensors, accessory mounts, and other essential components to support proper engine performance and monitoring. We carry trusted brands like AEM, Bosch, COBB, GrimmSpeed, IAG Performance, Mach V, NGK, Omni Power, and more.