"Up Pipes High Flow, 304 SS, 2001-2016 GM 6.6L Duramax Diesel,LB7,LLY,LBZ,LMM,LML  Includes turbo to up pipe and manifold to up pipe stainless gaskets.  Designed for exact fit and to bolt directly to your Factory GM Duramax 6.6L exhaust manifolds and turbo charger inlet flange. Pipes have proper clearance for exact tit of down pipe.  Not legal for sale or use in California on pollution controlled motor vehicles""  Legal in California only for racing vehicles that may never be used, or re..."