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Grimmspeed 02-14 WRX / 04-21 STI Top Mount Intercooler Silicone Coupler Kit Black
Regular price $89.00Regular priceUnit price per$89.00Sale price $89.00 -
Extreme Online Store 15-21 Subaru WRX / STi Axle Back Quad Burnt Tips Exhaust
Regular price $289.98Regular priceUnit price per$289.98Sale price $289.98 -
BLOX Racing 15-21 Subaru WRX/STI Muffler Delete Kit - Black Tip | BXEX-51104-BK
Regular price $284.88Regular priceUnit price per$450.00Sale price $284.88Sale -
Cobb 08-21 STI Silicone Turbo Inlet V2 Black | 712450
Regular price $265.00Regular priceUnit price per$265.00Sale price $265.00 -
COBB 08-21 STI Fuel Pressure Regulator Kit | 315200
Regular price $375.00Regular priceUnit price per$375.00Sale price $375.00 -
Forced Performance 04-21 Subaru STI/ 02-07 WRX FP GREEN 57S Turbocharger 84MM CH 8CM Turbine Housing External Wastegate Oil Line Included | 2029130
Regular price $1,449.00Regular priceUnit price per$1,449.00Sale price $1,449.00 -
OLM 15-21 Subaru WRX/STIPaint Matched Inner Fender Trim| A.70173.1
Regular price $139.00Regular priceUnit price per$139.00Sale price $139.00 -
Tial 44mm MVR External Wastegate - Universal
Regular price From $425.00Regular priceUnit price per$425.00Sale price From $425.00 -
Remark 15-21 Subaru WRX/STI Stealth Edition Axle Back | RO-TSVA-SB
Regular price $415.88Regular priceUnit price per$495.00Sale price $415.88Sale -
Invidia Uppipe No EGT Bung Subaru WRX 02-14 / STI 04-21 | HS06SW1UPP
Regular price $267.00Regular priceUnit price per$286.00Sale price $267.00Sale -
Mishimoto 08-15** Subaru WRX/STI Plug-N-Play Aluminum Fan Shroud Kit | MMFS-STI-08P
Regular price $287.95Regular priceUnit price per$409.69Sale price $287.95Sale -
Cobb 08-25 Subaru WRX/STI 12mm Urethane Exhaust Hanger | 511312
Regular price $20.00Regular priceUnit price per$20.00Sale price $20.00 -
Grimmspeed 08-21 Subaru WRX / 08-18 STI / 09-18 Forester / 13-17 Crosstrek / 05-17 Legacy DRY-CON Panel Filter | 060091
Regular price $59.00Regular priceUnit price per$59.00Sale price $59.00 -
APR Carbon Fiber Radiator Cooling Plate - Subaru WRX/STI 2015 - 2021 | CF-815002
Regular price $272.66Regular priceUnit price per$316.00Sale price $272.66Sale -
Remark 15-21 Subaru WRX/STI R1-Spec Catback Exhaust Titanium Muffler Section w/ Burnt Tip | RK-C1076S-01T
Regular price $718.88Regular priceUnit price per$855.00Sale price $718.88Sale -
Process West 06-21 STI Intake Manifold Street Version Black | PWIM002B
Regular price $2,098.95Regular priceUnit price per$2,098.95Sale price $2,098.95
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.