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 StockIAG 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115WE
Only 1 leftRegular price $6,299.99Sale price $6,299.99 Regular priceUnit price per$6,299.99 -
In StockIAG 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115NE
Only 1 leftRegular price $6,299.99Sale price $6,299.99 Regular priceUnit price per$6,299.99 -
In StockIAG 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115VE
Only 1 leftRegular price $6,299.99Sale price $6,299.99 Regular priceUnit price per$6,299.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115DE
Only 1 leftRegular price $6,299.99Sale price $6,299.99 Regular priceUnit price per$6,299.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SE
Only 1 leftRegular price $6,299.99Sale price $6,299.99 Regular priceUnit price per$6,299.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SCE
Only 1 leftRegular price $6,499.99Sale price $6,499.99 Regular priceUnit price per$6,499.99 -
In StockIAG 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SCL2
Only 1 leftRegular price $8,249.99Sale price $8,249.99 Regular priceUnit price per$8,249.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SL2
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SCL3
Only 1 leftRegular price $8,249.99Sale price $8,249.99 Regular priceUnit price per$8,249.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115SL3
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115DL2
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115DL3
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115VL2
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115VL3
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115NL2
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99 -
In StockIAG 02-14 WRX/04-21 STI/05-09 LGT/04-13 FXT 1150 CNC Ported Drag Cylinder Heads Package | IAG-ENG-H115NL3
Only 1 leftRegular price $7,999.99Sale price $7,999.99 Regular priceUnit price per$7,999.99
