Do you have a header leak or are you installing aftermarket headers? Then we (highly!) recommend using only OEM header gaskets. Due to the high level of aftermarket exhaust gasket leaks we've experienced; we only use OEM exhaust gaskets at HHP... and we haven't had a leaking gasket since we made this transition. One set of 5.7L multi-layer steel exhaust manifold (header) gaskets. These are OEM stock replacements but also can be used with aftermarket performance headers such as JBA, Kooks, Dynatech and Gibson headers. These MOPAR header gaskets are surprisingly one of the best gaskets you can get, better than the gaskets that come with the performance kits. If you need to replace your header gaskets, we recommend using these.
