GetADomTune Cylinder 4 Chamber Cooling System 2015-2021 STI

 Industry first (and patent pending) DOHC EJ Cylinder 4 Combustion Chamber Cooling kit increases coolant flow in the LH head to improve reliability by reducing detonation causing hot spots, reducing EGT delta and improving overall cooling system performance. 

Each kit contains:

1x Coolant pipe assembled with a high grade silicone hose, Stainless Pinch clamp, Custom machined and anodized 6061 fitting. 

1x Aluminum T

4x GDT custom made 304SS embossed, non perforated, rounded edge worm clamps.