Optimize your Subaru STI 2004-2007 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.
Subaru STI 2004-2007 Engine Parts
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In StockBrian Crower Exhaust Valves WRX 2002-2014 / STI 2004-2019
Only 4 leftRegular price From $147.81Sale price From $147.81 Regular priceUnit price per$0.00 -
Up to $30 offBLOX Racing Fuel Management Unit Type-A 10:1 Ratio - Universal
Regular price $120.00Sale price $120.00Unit price per -
Up to $1.21 offTorque Solution Greddy Blow Off Valve Adapter
Fits: 02-07 WRX, 04-21 STI
Regular price $41.00Sale price $41.00 Regular priceUnit price per$42.21 -
In StockTorque Solution Tial 38mm Wastegate Inlet Flange - Universal
Only 5 leftRegular price $27.00Sale price $27.00 Regular priceUnit price per$27.00 -
In StockTorque Solution Battery Terminals Brass M6 Bolt to SAE - Universal
Only 4 leftRegular price $26.00Sale price $26.00 Regular priceUnit price per$26.00 -
Up to $88.54 off
In StockTorque Solution Engine / Transmission / Pitch Mount Set Solid WRX 2002-2014 / STI 2004-2019
Only 10 leftRegular price From $383.00Sale price From $383.00 Regular priceUnit price per$455.54 -
Up to $275.87 off
In StockTurboXS High-Flow Cat Stealthback Exhaust WRX/STI 2002-2007 | WS02-SBE
Only 4 leftRegular price $780.00Sale price $780.00 Regular priceUnit price per$1,055.87 -
Up to $421.78 off
In StockTurboXS 02-07 WRX/STI Standard Catted Turboback Exhaust | WS02-TBE
Only 5 leftRegular price $1,194.00Sale price $1,194.00 Regular priceUnit price per$1,615.78 -
Up to $145.91 off
In StockTurboXS Standard Rear Axleback Exhaust WRX/STI 2002-2007 | WS02-RMA
Only 13 leftRegular price $414.00Sale price $414.00 Regular priceUnit price per$559.91 -
In StockTurbo XS T Clamp Stainless Steel 55-61mm/2.16-2.4in - Universal | T55-61
Regular price $14.00Sale price $14.00 Regular priceUnit price per$14.00 -
In StockTurbo XS T Clamp Stainless Steel 67-73mm/2.63-2.87in - Universal
Regular price $14.00Sale price $14.00 Regular priceUnit price per$14.00 -
In StockTurbo XS Donut Gasket with 76mm/3 inch I.D. - Universal | WS-HW-DONUT
Regular price $20.00Sale price $20.00 Regular priceUnit price per$20.00 -
Up to $5.76 offTurbo XS HKS-to-Turbo XS BOV Adapter - Universal | H-HKS
Regular price $36.00Sale price $36.00 Regular priceUnit price per$41.76 -
Up to $91.09 off
In StockTurbo XS High Flow Catalytic Converter Pipe WRX/STI 2002-2007 / Forester XT 2004-2008 | WS02-CP
Only 9 leftRegular price $260.00Sale price $260.00 Regular priceUnit price per$351.09 -
Walbro Fuel Pump Install Kit - Universal
Regular price $16.50Sale price $16.50 Regular priceUnit price per$0.00 -
In StockWalbro 255lph High Pressure Fuel Pump *WARNING - GSS 342* - Universal
Regular price $76.00Sale price $76.00 Regular priceUnit price per$76.00
