Replaces the factory manifold adapter with barbs and gives you a easy quick release fill port at the top of the manifold to fill and purge any air bubbles from.
This will stick out about 2.125 (2-1/8) from the mounting flange on the lid, please check your vehicle for clearance issues at the fire wall. low profile 90 deg AN fittings may be required to fit your vehicle.
Compatibility: This is compatible with the CTS-V LSA only (silver lid with water fittings in back of engine). This will not fit a Camaro ZL1 lid (Black lid with water fittings in front of engine)