IAG 1150 CNC Ported Drag Cylinder Heads Package for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT PDM_valve-stems the pattern is extremely smooth

the pattern is extremely smooth throughout

Compatibility and Design

+25°F (+13

Extremely Adjustable - Mount them wide

IAG 1150 CNC Ported Drag Cylinder Heads Package for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT PDM_valve-stems the pattern is extremely smoothIAG 1150 CNC Ported Drag Cylinder Heads Package IAG 1150 CNC Ported Drag Cylinder Heads for 02 14 WRX, 04 21 STI, 05 09 LGT, 04 13 FXT MAXIMUM POWER FOR DRAG RACING The IAG 1150 CNC Ported Drag Cylinder Heads are designed for drag racing and competition. These fully CNC ported heads provide a significant upgrade in long term performance over the IAG 950 heads. These heads work great for cars where getting the most power with maximum reliability is the