IAG Stage 4 CNC Ported Chamber Matched Heads w/ +1mm GSC Valves & GSC S3 Camshafts for 02-05 WRX 2.0L S20. 2018-subaru-wrx sti-sport s braking system is easy

s braking system is easy when you choose Hawk Performance

1 x 1 inches

oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup

These cams are intended for vehicles making 700+ wheel horsepower

Attempting to remove Thermic Black Coating with brake cleaner or any other method is NOT covered under EBC warranty

IAG Stage 4 CNC Ported Chamber Matched Heads w/ +1mm GSC Valves & GSC S3 Camshafts for 02-05 WRX 2.0L S20. 2018-subaru-wrx sti-sport s braking system is easyIAG Stage 4 Ported Heads with +1mm GSC Valves & Cams: IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the S20 heads that was developed over the past 5 years and tested on the most successful high horsepower Subarus. The ported head package starts with brand new S20 WRX OEM head castings directly from Subaru. The castings are visually inspected then fixtured into our in house Centroid 5 axis CNC Machine, one of the most advanced