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Review on High-Quality GM 12617944 Exhaust Manifold Gasket for Optimal Performance by Guillo Tilden

Revainrating 5 out of 5

Actually no other exhaust manifold gasket than .

Actually, there are no exhaust manifold gaskets other than this one. When installing long manifolds on a base LS engine, do not use the paper spacers provided. Just buy a new OEM kit and you're done.

Pros
  • Hands-free operation
Cons
  • -