Chevy Corvette ZR1 GM LS9 water inlet manifold gasket/seal (12608993). This gasket seals your ZR1 inlets (stock or aftermarket) to your stock or aftermarket ZR1 intercooler lid.
If you are using our aftermarket inlets you will need a set of these gaskets. Typically you can swap your stock gaskets from the stock LS9 inlet manifold but if you're doing a LSA (or other) upgrade to a dual-brick style LS9/ZR1 lid you'll need a set of these 12608993 gaskets to ensure the inlets seal to the lid.
GM Part Number: 12608993
Material: Silicone