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 StockDeatschwerks 78lb | 800cc 4 Set Long Fuel Injectors - Universal
Only 3 leftRegular price $299.00Sale price $299.00 Regular priceUnit price per$299.00 -
In StockDeatschWerks DWR1000 Adjustable Fuel Pressure Regulator - Black - Universal
Regular price $169.00Sale price $169.00 Regular priceUnit price per$169.00 -
In StockDeatschWerks DWR1000 Adjustable Fuel Pressure Regulator - Titanium - Universal
Regular price $169.00Sale price $169.00 Regular priceUnit price per$169.00 -
CP Piston Set 99.5mm Bore 10:1 CR WRX 2006-2014 / STI 2004-2019 Subaru Turbo 2.5L
Regular price $588.00Sale price $588.00 Regular priceUnit price per$0.00 -
In StockBrian Crower Stage 2 Camshafts WRX/STI 2002-2007
Only 3 leftRegular price From $866.00Sale price From $866.00 Regular priceUnit price per$866.00 -
In StockBrian Crower 02-14 WRX / 04-21 STI Single Valve Springs | BC1600
Only 11 leftRegular price $96.00Sale price $96.00 Regular priceUnit price per$96.00 -
In StockBrian Crower Exhaust Valves WRX 2002-2014 / STI 2004-2019
Only 7 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 $0.54 off
In StockTorque Solution Tial 38mm Wastegate Inlet Flange - Universal
Only 5 leftRegular price $25.00Sale price $25.00 Regular priceUnit price per$25.54 -
Torque Solution Battery Terminals Brass M6 Bolt to SAE - Universal
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
Up to $121.54 off
In StockTorque Solution Engine / Transmission / Pitch Mount Set Solid WRX 2002-2014 / STI 2004-2019
Only 6 leftRegular price From $356.00Sale price From $356.00 Regular priceUnit price per$455.54 -
Up to $2.99 off
In StockTorque Solution Spark Plug Gap Tool 14mm - Universal
Only 2 leftRegular price $35.00Sale price $35.00 Regular priceUnit price per$37.99 -
Up to $314.87 off
In StockTurboXS High-Flow Cat Stealthback Exhaust WRX/STI 2002-2007 | WS02-SBE
Only 8 leftRegular price $741.00Sale price $741.00 Regular priceUnit price per$1,055.87 -
Up to $421.78 offTurboXS 02-07 WRX/STI Standard Catted Turboback Exhaust | WS02-TBE
Regular 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 19 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
