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GrimmSpeed Front Mount Intercooler Pipe Kit Red Subaru STI 15-21 | GRM090231
Regular price $1,180.00Regular priceUnit price per$1,180.00Sale price $1,180.00 -
Grimmspeed The Bolt Oil Cap Yellow Zinc Subaru Models 89-19 / 89-19 FRS/86 | grm120014Y
Regular price $103.00Regular priceUnit price per$103.00Sale price $103.00 -
GrimmSpeed Dry-Con Performance Panel Air Filter Subaru BRZ 2012-21 MT / BRZ 2017-2019 AT | 060094
Regular price $103.00Regular priceUnit price per$103.00Sale price $103.00 -
Perrin Performance FMIC Hose Clamp Kit Subaru WRX 2002-2017 / STI 2004-2017 | PSP-ITR-413
Regular price $108.00Regular priceUnit price per$127.00Sale price $108.00Sale -
PERRIN Performance Hose Clamp Kit Subaru STI 15-2020 | PSP-ITR-415
Regular price $92.00Regular priceUnit price per$108.00Sale price $92.00Sale -
PERRIN Performance Coolant Overflow Tank Subaru STI 15-2020 | ASM-ENG-502
Regular price $234.00Regular priceUnit price per$406.00Sale price $234.00Sale -
Perrin Crank Pulley W/o AC Only Red 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-102RD
Regular price $144.00Regular priceUnit price per$235.00Sale price $144.00Sale -
Perrin Crank Pulley W/o AC Only Black 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-102BK
Regular price $144.00Regular priceUnit price per$235.00Sale price $144.00Sale -
PERRIN Performance Rotated UpPipe EFR Subaru WRX 2002-2014 / STI 2004+ | PSP-TKS-110
Regular price $654.00Regular priceUnit price per$727.00Sale price $654.00Sale -
Mishimoto 02-14 WRX / 04-21 STI Titanium Turbo Blanket | MMTB-WRX-01
Regular price $146.00Regular priceUnit price per$210.00Sale price $146.00Sale -
DeatschWerks X2 Series Pump Module CPE Plumbing Kit for Subaru WRX 2008+ / STI 2008+ | dwk6-615
Regular price $1,299.00Regular priceUnit price per$1,299.00Sale price $1,299.00 -
DeatschWerks X2 Series Pump Module PTFE Return Plumbing Kit Subaru WRX 2008-2014 / STI 2008-21 | dwk6-616
Regular price $1,473.00Regular priceUnit price per$1,473.00Sale price $1,473.00 -
Grimmspeed 02-07 WRX / 04-21 STI CHASE JB400 Turbocharger Kit | 123005
Regular price $2,342.00Regular priceUnit price per$2,342.00Sale price $2,342.00 -
Grimmspeed 02-07 WRX / 04-21 STI OVERTAKE BB500 Turbocharger Kit | 123006
Regular price $2,862.00Regular priceUnit price per$2,862.00Sale price $2,862.00 -
BOOMBA RACING 15-21 STI BLOW RECIRCULATING BYPASS VALVE NATURAL FINISH | 001000220000
Regular price $575.00Regular priceUnit price per$575.00Sale price $575.00 -
BOOMBA RACING 15-21 STI BLOW RECIRCULATING BYPASS VALVE BLACK | 001000220100
Regular price $575.00Regular priceUnit price per$575.00Sale price $575.00
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.