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ACL 02-14 WRX / 04-21 STI Race Main Bearing Set Standard Size Position 3 | 5M8297H-STD
Regular price $122.88Regular priceUnit price per$122.88Sale price $122.88 -
IAG Performance 08-14 WRX / 08-21 STI / 05-09 LGT MAF Sensor Block Off Plate Silver | IAG-AFD-4001SL
Regular price $41.99Regular priceUnit price per$41.99Sale price $41.99 -
Mishimoto 08-21 STI Top Mount Intercooler Black w/ Red Hoses | MMTMIC-STI-08BKRD
Regular price $710.95Regular priceUnit price per$710.95Sale price $710.95 -
Torque Solution 06-07 WRX / 04-21 STI Throttle Body Spacer Silver | TS-TBS-027
Regular price $59.88Regular priceUnit price per$77.77Sale price $59.88Sale -
Turbo XS 02-07 WRX / 04-21 STI RFL Series Recirculating Bypass Valve | TXS-WS-RBV
Regular price $249.99Regular priceUnit price per$249.99Sale price $249.99 -
IAG Performance 08-14 WRX / 08-21 STI Flex Fuel Line Upgrade Kit | IAG-AFD-2203
Regular price $109.99Regular priceUnit price per$109.99Sale price $109.99 -
Cusco 02-14 WRX / 04-21 STI / 05-09 LGT Aluminum Pulley Set | 6A1-733-A
Regular price $276.30Regular priceUnit price per$276.30Sale price $276.30 -
Kartboy 02-14 WRX / 04-21 STI / 94-09 Legacy / 98-13 Forester Aluminum Single Belt Crank Pulley | KB-050-EJ-S
Regular price $125.00Regular priceUnit price per$125.00Sale price $125.00 -
GSC Power-Division 02-14 WRX / 04-21 STI Super Alloy Exhaust Valves +1 | 2017-8
Regular price $211.92Regular priceUnit price per$211.92Sale price $211.92 -
GSC Power-Division 08-21 STI S3 Billet Camshaft Set | 7026S3
Regular price $1,058.68Regular priceUnit price per$1,058.68Sale price $1,058.68 -
Torque Solution 02-07 WRX / 04-21 STI / 04-08 FXT 3 Inch Recirculating Style Turbo Inlet Hose - Black | TS-SU-565-R
Regular price $204.88Regular priceUnit price per$288.88Sale price $204.88Sale -
Fuel Injector Clinic 02-14 WRX / 07-21 STI Injectors Top Feed 1440cc | IS175-1440H
Regular price $819.00Regular priceUnit price per$819.00Sale price $819.00 -
Killer B Motorsport 02-14 WRX / 04-21 STI 4-1 Max VE Holy Header Exhaust Manifold 2 Bolt | HH-2BOLT-VE
Regular price $1,599.00Regular priceUnit price per$1,599.00Sale price $1,599.00 -
Radium Engineering 08-21 Subaru WRX/STI Fuel Line Retaining Kit | 20-0526
Regular price $94.95Regular priceUnit price per$99.95Sale price $94.95Sale -
Nameless Performance 11-21 Subaru WRX Sedan / 11-21 STI Sedan Axle Back Polished Tips for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI-INV-35SSW
Regular price $483.00Regular priceUnit price per$483.00Sale price $483.00 -
IAG 02-14 WRX / 04-21 STI / 05-12 LGT / 04-13 FXT Black Timing Belt Kit ( Competition Tensioner / Belt / Guide) | IAG-ENG-5130BK
Regular price $799.99Regular priceUnit price per$799.99Sale price $799.99
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.