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 StockMegan Racing Aluminum Radiator WRX/STI 2002-2007 | MR-RT-SI04ST
Only 5 leftRegular price $270.00Sale price $270.00 Regular priceUnit price per$225.00 -
Up to $2.50 offRadium Engineering Fuel Surge Tank Mtg Bracket Angled Mount - Universal
Regular price $47.45Sale price $47.45 Regular priceUnit price per$49.95 -
Up to $3 off
In StockRadium Engineering Electrical Bulkhead Stud Kit | Pack of 6 - Universal
Regular price $56.95Sale price $56.95 Regular priceUnit price per$59.95 -
Up to $46.01 offRadium Engineering Fuel Hanger | Dual Pumps Inc Walbro F90000274 E85 WRX/STI 2002-2007
Regular price $873.94Sale price $873.94 Regular priceUnit price per$919.95 -
Up to $1.50 off
In StockRadium Engineering Radiator Cap Type-A 1.5 Bar - Universal
Regular price $28.45Sale price $28.45 Regular priceUnit price per$29.95 -
Up to $7.25 off
In StockRadium Engineering High Flow Fuel Filter Kit w/ 10 Micron Stainless Filter - Universal
Regular price $137.70Sale price $137.70 Regular priceUnit price per$144.95 -
Up to $6 offRadium Engineering Fuel Rail In Line Pulse Damper 6AN - Universal
Regular price $113.95Sale price $113.95 Regular priceUnit price per$119.95 -
aFe Takeda Dry Filter Cleaner - Universal
Regular price $23.45Sale price $23.45 Regular priceUnit price per$23.45 -
In StockaFe Filter Cleaning Kit Power Restore Kit Squeeze Blue - Universal | 90-50501
Regular price $21.00Sale price $21.00 Regular priceUnit price per$21.00 -
Up to $12 off
In StockTomei Fuel Pressure Regulator Type-S - Universal
Only 5 leftRegular price $108.00Sale price $108.00 Regular priceUnit price per$120.00 -
NRG Fender Washer Kit FW-100 Purple - Universal | FW-100PP
Regular price $28.60Sale price $28.60 Regular priceUnit price per$28.60 -
NRG M14 X 1.5 Red Magnetic Oil Drain Plug - Universal | NOP-100RD
Regular price $18.00Sale price $18.00 Regular priceUnit price per$18.00 -
Up to $64.45 off
In StockManley 99.5mm STD Bore, 9.8 Comp. Pistons WRX 2006-2014 / STI 2004-2019 | 612100C-4
Only 2 leftRegular price $741.18Sale price $741.18 Regular priceUnit price per$805.63 -
JE Pistons 100.0mm Ring Sets - Universal | JC4404-3938
Regular price $72.25Sale price $72.25 Regular priceUnit price per$0.00 -
Injen Catted Bellmouth Downpipe WRX/STI 2002-2007 | SES1202DP
Regular price $642.95Sale price $642.95 Regular priceUnit price per$642.95 -
In StockGates 170 Degree Thermostat WRX 2002-2014 / STI 2004-2019 | 34012
Only 6 leftRegular price $28.00Sale price $28.00 Regular priceUnit price per$28.00
