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 $1 off
In StockRadium Engineering -6AN Inline to 1/8NPT Female Fitting - Universal
Only 6 leftRegular price $18.95Sale price $18.95 Regular priceUnit price per$19.95 -
Up to $15.50 off
In StockRadium Engineering Coolant Expansion Tank- Universal
Only 11 leftRegular price $294.45Sale price $294.45 Regular priceUnit price per$309.95 -
Up to $0.65 offRadium Engineering HOSE CLAMP- T-BOLT, 67-75MM- BLACK - Universal
Regular price $12.30Sale price $12.30 Regular priceUnit price per$12.95 -
Up to $375 off
In StockSnow Performance 05-14 STI Stage 2 Boost Cooler | SS Brd Line & 4AN Fittings | SNO-2110-BRD
Only 2 leftRegular price $937.51Sale price $937.51 Regular priceUnit price per$1,312.51 -
Up to $275.01 off
In StockSnow Performance Stg 2 Boost Cooler F/I Prog. Water-Methanol Inj. Kit | SS Braided Line 4AN Fittings - Universal
Only 18 leftRegular price $687.50Sale price $687.50 Regular priceUnit price per$962.51 -
Up to $5.90 offk-n-p-dry-charger-round-tapered-air-filter-wrap-black-universal | 22-8038DK
Regular price $31.99Sale price $31.99 Regular priceUnit price per$37.89 -
DEI Reflect-A-GOLD Heat Reflective Tape 12inch x 12inch Sheet - Universal
Regular price $16.49Sale price $16.49 Regular priceUnit price per$0.00 -
Up to $37.20 off
In StockTurbo XS High Performance Boost Controller | BC-HPBC
Regular price $139.00Sale price $139.00 Regular priceUnit price per$176.20 -
In StockWalbro 255LPH Fuel Pump for 89-98 Nissan 240sx
Regular price $76.00Sale price $76.00 Regular priceUnit price per$76.00 -
In StockWalbro 255LPH Fuel Pump for 00-09 Honda S2000
Regular price $76.00Sale price $76.00 Regular priceUnit price per$76.00 -
Up to $10.05 off
In StockMishimoto Coolant Reservoir Tank - Universal
Only 8 leftRegular price $96.95Sale price $96.95 Regular priceUnit price per$107.00 -
Up to $7 off
In StockAEM Water/Methanol Injection Inline Filter | 30-3003
Only 7 leftRegular price $51.95Sale price $51.95 Regular priceUnit price per$58.95 -
AEM Infinity 02 Sensor Extension Harness | 72" Length | 30-3600
Regular price $90.87Sale price $90.87 Regular priceUnit price per$90.87 -
Up to $44 off
In StockAEM Flex Fuel Sensor 30-2201 w/ -6 AN Fittings | 30-2201
Only 4 leftRegular price $349.95Sale price $349.95 Regular priceUnit price per$393.95 -
Up to $112 off
In StockBorla Headers Subaru Legacy GT 2005-2009 | 17217
Only 3 leftRegular price $936.99Sale price $936.99 Regular priceUnit price per$1,048.99 -
In StockDeatschwerks Top Feed 565cc Injectors
Fits: 02-14 WRX, 07-21 STI, 07-12 LGT, 07-09 OBXT
Only 5 leftRegular price $379.00Sale price $379.00 Regular priceUnit price per$379.00
