Custom IAG Tri-Beam +2mm connecting rods with ARP 625+ rod bolts are utilized
True Equal-Length Design with Seamless FlowEach header runner is CNC-bent and precision-trimmed from a single piece of tubing
Rounding it all out is a heavy duty textured black DuPont powdercoat and black zinc hardware
CNC-machined flanges and OEM-position hanger welds mean the system bolts directly to the VA WRX/STI at the factory downpipe flange and hanger locations
Advanced analysis software used to optimize airfoil performance
IAG 950 CNC Ported Race Cylinder Heads Package for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Include GSC Camshafts & Lifters:Yes, Include GSC S2 Cams & Kelford DLC Coated Lifters Custom IAG Tri-Beam +2mm connectingIAG 950 CNC Ported Race Cylinder Heads Package IAG 950 CNC Ported Race Cylinder Heads for 02 14 WRX, 04 21 STI, 05 09 LGT, 04 13 FXT BUILT WITH RACING IN MIND The IAG 950 CNC Ported Race Cylinder Heads are designed for racing and competition. These fully CNC ported heads provide a significant upgrade in flow over the IAG 750 heads. These heads work great for cars where getting more power might be the difference between winning or losing that big race.
