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Perrin Crank Pulley W/o AC Only Blue For Ej Engines Subaru WRX 2002-2014/ Outback 1995-2009/ Outback XT 2005-2009 / Forester 2003-2010/ Forester XT 2003-2013 /Legacy 1994-2009 / STI 2004-21/ Impreza 1993-2011 | PSP-ENG-102BL
Regular price $143.00Regular priceUnit price per$233.00Sale price $143.00Sale -
aFe 08-21 Subaru WRX/ 08-18 STI/ 09-16 FXT Power Magnum FLOW OER Pro DRY S Air Filter | 31-10161
Regular price $131.00Regular priceUnit price per$131.00Sale price $131.00 -
Seibon Carbon Fiber Tube 47in x .63in Universal | CFTUBE16
Regular price $74.00Regular priceUnit price per$87.00Sale price $74.00Sale -
STI JDM Battery Tie Down Silver Subaru WRX 15-2020 / STI 15-2020 / Scion FR-S 2013-2020 / BRZ 2013-2020 / Toyota GR86 2013-2020 / Forester 2014+ | ST82182ST010
Regular price $327.00Regular priceUnit price per$327.00Sale price $327.00 -
Radium Engineering 02-14 WRX / 07-22 STi / 02-22 Impreza / 04-13 Forester / 07-12 Legacy / 07-12 OutbackEJ Dual Port Injection Kit Coated | 20-0689-00
Regular price $982.00Regular priceUnit price per$1,033.00Sale price $982.00Sale -
Turbosmart 02-07 WRX / 04-21 STI / 06-08 FXT Dual Port Blow Off Valve | TS-0205-1015
Regular price $612.00Regular priceUnit price per$680.00Sale price $612.00Sale -
Turbosmart 02-07 WRX / 04-21 STI / 06-08 FXT Plumb Back Recirculating Blow Off Valve Blue | TS-0205-1215
Regular price $594.00Regular priceUnit price per$660.00Sale price $594.00Sale -
Turbosmart 09-14 WRX / 08-21 STI Internal Wastegate Actuator 7psi Black | TS-0605-1072
Regular price $343.00Regular priceUnit price per$381.00Sale price $343.00Sale -
MAPerformance EJ25 Stage 2 Shortblock Assembly New OEM Block Halves + Crankshaft Subaru WRX 2015+ / STI 2015+ | SUB-EJ25MSS-S2
Regular price $8,328.00Regular priceUnit price per$8,328.00Sale price $8,328.00 -
MAPerformance Stage 1+ Power Package Subaru STI 15-2020 | STI-4G-S1+-PARENT
Regular price From $1,872.00Regular priceUnit price per$2,080.00Sale price From $1,872.00Sale -
MAPerformance Stage 2 Upgrade Kit MT Performance Package Subaru FA20 WRX 15-2020 | WRX-4G-S2-PARENT
Regular price From $3,452.00Regular priceUnit price per$3,452.00Sale price From $3,452.00 -
Nameless Performance Muffler Delete Polished Single Wall Tips Subaru STI 2019+ | RSPD084
Regular price $791.00Regular priceUnit price per$791.00Sale price $791.00 -
Nameless Performance Axle Back Quad Exit Exhaust w/ 5in Mufflers Subaru STI 2019-2020 | RSPD085
Regular price $1,075.00Regular priceUnit price per$1,075.00Sale price $1,075.00 -
Nameless Performance Midpipe 3in Subaru STI 2019+ | RSPD088
Regular price $1,331.00Regular priceUnit price per$1,331.00Sale price $1,331.00 -
Nameless Performance Quad Exit Single Wall Neochrome Tips Subaru WRX/STI Sedan 2011-2014 | RSPD068
Regular price $1,151.00Regular priceUnit price per$1,151.00Sale price $1,151.00 -
Nameless Performance Axle Back Double Wall Polished Tips Subaru STI 2019-2020 | RSPD081
Regular price $999.00Regular priceUnit price per$999.00Sale price $999.00
Optimize your Subaru STI 2015-2021 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.