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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CSF Universal Signal-Pass Oil Cooler | RSR Style - M22 x 1.5 - 24in L x 5.75in H x 2.16in W
Regular price $619.00Sale price $619.00 Regular priceUnit price per$619.00 -
In StockCSF Universal Dual-Pass Oil Cooler | RS Style - M22 x 1.5 - 24in L x 5.75in H x 2.16in W
Only 4 leftRegular price $619.00Sale price $619.00 Regular priceUnit price per$619.00 -
In StockCSF Universal Dual-Pass Internal/External Oil Cooler - 22.0in L x 5.0in H x 2.25in W
Only 4 leftRegular price $379.00Sale price $379.00 Regular priceUnit price per$379.00 -
Up to $54 off
In StockCSF Universal Triple Pass Dual Core Radiator w/AN Fittings
Only 10 leftRegular price $525.00Sale price $525.00 Regular priceUnit price per$579.00 -
Up to $44 off
In StockCSF Universal Half Radiator w/-16AN & Slip-On Fittings/12in SPAL Fan & Shroud
Only 8 leftRegular price $685.00Sale price $685.00 Regular priceUnit price per$729.00 -
Up to $21 off
In StockAEM Universal Adjustable Fuel Pressure Regulator | 25-302BK
Only 11 leftRegular price $166.95Sale price $166.95 Regular priceUnit price per$187.95 -
Up to $20 off
In StockAEM Universal -10AN High Volume Fuel Filter | 25-201BK
Only 3 leftRegular price $155.95Sale price $155.95 Regular priceUnit price per$175.95 -
Blouch Performance WRX/STI 2002-2007 16G-XT-R Turbocharger Turbo | SUB-TD05H-16G-XT-R
Regular price From $1,495.00Sale price From $1,495.00 Regular priceUnit price per$0.00 -
Blouch Performance WRX / STi 2002-2007 18G-XT-R Turbocharger Turbo | SUB-TD05H-18G-XT-R
Regular price From $1,550.00Sale price From $1,550.00 Regular priceUnit price per$0.00 -
In StockHKS 3 Layer Dry 150mm Green Replacement Filter Element - Universal | 70001-AK021
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
In StockHKS Turbo Timer Harness WRX/STI 2002-2007 | 4103-RF002
Only 17 leftRegular price $20.00Sale price $20.00 Regular priceUnit price per$20.00 -
GSC P-D Ovate Beehive Valve Spring - Universal
Regular price $12.44Sale price $12.44 Regular priceUnit price per$0.00 -
Up to $0.75 off
In StockRadium Engineering 9/16-18 O-Ring Port Plug - Universal
Only 13 leftRegular price $14.20Sale price $14.20 Regular priceUnit price per$14.95 -
Up to $0.25 off
In StockRadium Engineering O-Ring 5-Pack 6AN Viton - Universal
Only 4 leftRegular price $4.70Sale price $4.70 Regular priceUnit price per$4.95 -
Up to $0.25 offRadium Engineering O-Ring 5-Pack 10AN Viton - Universal
Regular price $4.70Sale price $4.70 Regular priceUnit price per$4.95 -
Up to $0.25 off
In StockRadium Engineering O-Ring 5-Pack 8AN Viton - Universal
Only 3 leftRegular price $4.70Sale price $4.70 Regular priceUnit price per$4.95
