-
Extreme Online Store 08-21 Subaru WRX STi | 08-14 Impreza WRX Performance Catted Downpipe
Regular price $329.98Regular priceUnit price per$329.98Sale price $329.98 -
Grimmspeed 04-21 STI / 02-07 WRX V2 Bypass Valve Red | 126032RED
Regular price $249.00Regular priceUnit price per$249.00Sale price $249.00 -
Grimmspeed 04-21 STI / 02-07 WRX V2 Bypass Valve Black | 126032BLK
Regular price $249.00Regular priceUnit price per$249.00Sale price $249.00 -
Grimmspeed 08-21 Subaru WRX/STI / 05-09 LGT / 13-21 BRZ 12MM Two Position Exhaust Hanger (Set of 4) | 070047
Regular price $40.00Regular priceUnit price per$40.00Sale price $40.00 -
IAG Performance 02-14 WRX / 04-21 STI / 04-13 FXT / 05-09 LGT 550 Series EJ25 Short Block | IAG-ENG-S550
Regular price $3,999.99Regular priceUnit price per$3,999.99Sale price $3,999.99 -
Mishimoto 08-21 STI/ 08-14 WRX Radiator Hose Kit Red | MMHOSE-STI-08RD
Regular price $123.95Regular priceUnit price per$123.95Sale price $123.95 -
CSF 08-21 Subaru WRX/STI 2-Row Subaru Aluminum Radiator | B22415-RS
Regular price $395.00Regular priceUnit price per$395.00Sale price $395.00 -
IAG Street Series Oil Pan Package for 02-14 WRX / 04-21 STI / 05-09 LGT / 04-13 FXT | IAG-ENG-2201
Regular price From $629.99Regular priceUnit price per$629.99Sale price From $629.99 -
Subaru OEM Donut Gasket Subaru Turbo Models | 44022AA123
Regular price $9.14Regular priceUnit price per$9.14Sale price $9.14 -
Cobb 02-07 Subaru WRX/ 04-21 STI TD05H-20G-8 Turbocharger | E1120G
Regular price $1,350.00Regular priceUnit price per$1,350.00Sale price $1,350.00 -
Radium Engineering 04-21 STI Fuel Rail Plumbing Kit - Parallel | 20-0984
Regular price $379.95Regular priceUnit price per$399.95Sale price $379.95Sale -
CSF 1-Row 31mm High-Performance Aluminum Radiator Subaru Impreza WRX 2008-2015 / STI 2008-2015 | 7094
Regular price $329.00Regular priceUnit price per$349.00Sale price $329.00Sale -
FactionFab Axle Back Exhaust Polished Tip WRX/STI 2011-2014 Sedan | FFA1.10111.1
Regular price $323.88Regular priceUnit price per$390.00Sale price $323.88Sale -
X-Force Pro Series Catted Downpipe Subaru WRX 2008-2014 / STI 2008+ | ES-SW08-KITB
Regular price $706.50Regular priceUnit price per$706.50Sale price $706.50 -
PLM Power Driven Subaru EWG 3-Bolt Up Pipe & Dump Tube 38mm Subaru WRX 2002-2014 / STI 2004-2020 / Baja Turbo 2004-2006 / Forester XT 2004-2013 / Legacy GT 2005-2009 / Outback XT 2005-2009 | PLM-SUB-UP-PIPE-EWG-38MM-3B
Regular price $249.00Regular priceUnit price per$349.00Sale price $249.00Sale -
Perrin 02-14 WRX / 04-21 STI / 05-09 Legacy / 04-13 Forester Lightened Crank Pulley Blue | PSP-ENG-100BL
Regular price $77.88Regular priceUnit price per$135.00Sale price $77.88Sale
Optimize your Subaru STI 2008-2014 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.