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Cobb Subaru WRX/STI/FXT 4 Bar MAP Sensor *Sensor Only* | A12100
Regular price $287.00Regular priceUnit price per$287.00Sale price $287.00 -
IAG Subaru STI Big Bore 76mm Throttle Body w/ Electronics & Adapter Package Process West Intake Manifolds | IAG-AFD-2028SL
Regular price $623.00Regular priceUnit price per$623.00Sale price $623.00 -
IAG 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT 550 Street Cylinder Heads Package | IAG-ENG-H550NE
Regular price $4,918.00Regular priceUnit price per$4,918.00Sale price $4,918.00 -
Turbo XS WRX/STi 3in Downpipe to OEM Cat-Back Adapter w/OEM Donut Gasket | ADA-3DP-OEMCB-2
Regular price $87.00Regular priceUnit price per$120.00Sale price $87.00Sale -
Turbosmart 02-07 WRX / 04-21 STI 34mm Blow Off Valve Plug | TS-0205-2016
Regular price $18.00Regular priceUnit price per$20.00Sale price $18.00Sale -
Fuel Injector Clinic 02-14 WRX / 07-21 STI Injectors Top Feed 1650cc | IS175-1650H
Regular price $1,469.00Regular priceUnit price per$1,469.00Sale price $1,469.00 -
Perrin 02-07 WRX / 04-21 STI / 04-08 FXT Turbo Inlet Hose 3in Black | PSP-INT-410BK
Regular price $300.00Regular priceUnit price per$546.00Sale price $300.00Sale -
Perrin 02-14 WRX / 04-21 STI / 05-09 LGT Air Oil Separator Red w/ FMIC | PSP-ENG-607RD
Regular price $648.00Regular priceUnit price per$938.00Sale price $648.00Sale -
Mishimoto 02-14 WRX/ 04-21 STI / 05-09 LGT / 04-05 FXT / 2009 FXT Racing Thermostat | MMTS-WRX-01
Regular price $92.00Regular priceUnit price per$116.00Sale price $92.00Sale -
Mishimoto Oil Block Sandwich Adaptor - Universal | MMOP-TPS
Regular price $107.00Regular priceUnit price per$139.00Sale price $107.00Sale -
Cobb 04-20 STI 6MT Stage 2+ Drivetrain Package w/Weighted Black Knob + Race Red Lockout | 215X02P-WK-BK-RDBK
Regular price $738.00Regular priceUnit price per$738.00Sale price $738.00 -
BLOX Racing Subaru EJ20/EJ25 Coolant Flow Upgrade Kit | BXCC-50000
Regular price $112.00Regular priceUnit price per$164.00Sale price $112.00Sale -
Perrin Radiator Shroud -Red Subaru STI 2004-2007 / WRX 2002-2007 | PSP-ENG-501RD
Regular price $92.00Regular priceUnit price per$102.00Sale price $92.00Sale -
Killer B Motorsport Cast Aluminum High Flow Water Pump Housing EJ Series Powder Coat Black Subaru WRX 2004-2014 / STI 2004-2020 / Forester XT 2004-2013 / Outback XT 2004-2009 / Legacy GT 2004-2009 | WPHV2-B
Regular price $269.00Regular priceUnit price per$269.00Sale price $269.00 -
Subaru JDM 02-14 WRX / 04-21 STI / 05-12 LGT / 05-09 Outback XT / 04-13 FXT 2.5L 12mm Oil Pump | 15010AA310
Regular price $287.00Regular priceUnit price per$492.00Sale price $287.00Sale -
Killer B Motorsport High Flow Water Pump Housing V2 Subaru Models (inc. 2002-2014 WRX/STI) | WPHV2
Regular price $251.00Regular priceUnit price per$251.00Sale price $251.00
Optimize your Subaru STI 2004-2007 engine's performance with a comprehensive range of top-quality aftermarket parts from industry-leading brands. Elevate the power and efficiency of your vehicle with ETS, HKS, Perrin, Mishimoto, AMS, Grimmspeed, Cobb, Remark, PLM, Turbosmart, IAG Performance, and more. Enhance airflow and filtration through AIR INTAKE DUCTS and COLD AIR INTAKES, while maintaining engine cleanliness with AIR OIL SEPARATORS and CATCH CANS. Experience impeccable control and responsiveness with BLOW OFF VALVES and BOOST CONTROL SOLENOID COVERS, complemented by the reliability of ENGINE MOUNTS and meticulously crafted ENGINE MANAGEMENT HARNESSES. Simplify maintenance and improve overall performance with DIPSTICKS and explore comprehensive ENGINE PACKAGE DEALS for a holistic approach to upgrading your Subaru WRX's engine. Unleash the full potential of your vehicle through precision-engineered components designed to deliver both power and durability, all meticulously designed to give your Subaru STI the edge on the road or track.