Wehrli Custom 2001-2004 LB7 Duramax 2" Stainless Twin Turbo Style Pass Side Up Pipe for OEM or Wehrli Custom Manifold with Gaskets

Replace the light weight, leak prone passenger side OEM up pipe with this heavy duty 11 gauge 2" Stainless up pipe. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spoolup and decrease EGT's. This up pipe is built with more sweeping, less aggressive bends for use in TWIN TURBO STYLE APPLICATIONS ONLY. It WILL NOT clear a conventional down pipe behind the engine.

Compatible with factory exhaust manifold or WCFab Duramax Billet Exhaust Manifolds (WCF100363) only.

Includes Up Pipe Gaskets NOTE: This up pipe will ONLY fit with OEM exhaust manifold.