SCE’s innovative new Graph-Form™ exhaust gaskets are designed to compensate for surface irregularities on the header flange, exhaust manifold, or cylinder head. These 1/8″ thick gaskets can be compressed up to 50% and will provide an excellent seal. Moreover, the proprietary material is exceptionally heat-resistant and will retain its composition where other brand gaskets will flake and decompose. They’re capable of handling the EGT (exhaust gas temperature) of any gas-burning engine. And they’re backed by a 100% money-back guarantee.