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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Up to $4.50 off
In StockGo Fast Bits Standard Replacement Trumpet | 6110
Only 1 leftRegular price $40.50Sale price $40.50 Regular priceUnit price per$45.00 -
Up to $3.40 offGo Fast Bits 30mm Respons/Deceptor Pro inlet | 5330
Regular price $30.60Sale price $30.60 Regular priceUnit price per$34.00 -
Up to $3.40 offGo Fast Bits 20mm Respons/Deceptor Pro Inlet | 5320
Regular price $30.60Sale price $30.60 Regular priceUnit price per$34.00 -
Up to $3.40 offGo Fast Bits 33mm Respons/Deceptor Pro inlet- male suit 32mm | 1-1/4" ID hose | 5333
Regular price $30.60Sale price $30.60 Regular priceUnit price per$34.00 -
Go Fast Bits 30mm Recirc hose plug - suit 30mm | 1-1/8" ID hose | 5530
Regular price $21.00Sale price $21.00 Regular priceUnit price per$21.00 -
Up to $3.40 offGo Fast Bits 25mm Respons/Deceptor Pro inlet | 5325
Regular price $30.60Sale price $30.60 Regular priceUnit price per$34.00 -
Up to $3.40 offGo Fast Bits 35mm hose/1" pipe Respons/Deceptor Pro inlet | 5335
Regular price $30.60Sale price $30.60 Regular priceUnit price per$34.00 -
Go Fast Bits 20mm Recirc hose plug - suit 19mm | 3/4" ID hose | 5520
Regular price $21.00Sale price $21.00 Regular priceUnit price per$21.00 -
Up to $0.69 offGo Fast Bits 25mm Recirc hose plug - suit 25mm | 1" ID hose | 5525
Regular price $14.31Sale price $14.31 Regular priceUnit price per$15.00 -
Up to $0.50 off
In StockRadium Engineering 8AN To 6AN Male Fitting - Universal
Regular price $9.45Sale price $9.45 Regular priceUnit price per$9.95 -
Up to $0.75 off
In StockRadium Engineering 8AN ORB Plug - Universal
Only 12 leftRegular price $14.20Sale price $14.20 Regular priceUnit price per$14.95 -
Up to $0.75 off
In StockRadium Engineering Green .500in OD Barb Fitting - Universal
Only 5 leftRegular price $14.20Sale price $14.20 Regular priceUnit price per$14.95 -
Up to $1 offRadium Engineering -8AN 2-Piece Push-Lok Straight Hose End - Universal
Regular price $18.95Sale price $18.95 Regular priceUnit price per$19.95 -
Up to $1 offRadium Engineering M12 x 1.5 to 6AN Bulkead w/ Jam Nut - Universal
Regular price $18.95Sale price $18.95 Regular priceUnit price per$19.95 -
Up to $0.50 offRadium Engineering 6AN Male To 1/4PT Male - Universal
Regular price $9.45Sale price $9.45 Regular priceUnit price per$9.95 -
Up to $0.75 off
In StockRadium Engineering 6AN Bulkhead With Jam Nut - Universal
Only 4 leftRegular price $14.20Sale price $14.20 Regular priceUnit price per$14.95
