2011-2016 LML DURAMAX 2" STAINLESS UP PIPE KIT - WCFAB

Replace the lightweight 16G, leak prone, 1 5/8" OEM driver and passenger side up pipes on your 2011-2016 6.6L LML Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck with this heavy duty 11 gauge 2" Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Improves exhaust flow which increases turbo spool-up and decreases EGT's. Excellent upgrade for hard working, heavy towing trucks or high performance applications equipped with larger upgraded turbocharger and emissions compliant tuning.
 
Compatible with OEM style exhaust manifolds or WCFab Billet Exhaust Manifold (Part Number WCF100363). Found here
 
INCLUDES GASKETS! - NO Tuning required, bolt on! -Will fit on stock truck no other modifications or upgrades necessary!
 
Replaces the following GM part numbers: 12657012, 12638302, 12644640, 12650925, 12637379
 
Will not work with aftermarket manifolds which alter the exhaust outlet location. 
Not compatible with LGH Duramax Equipped Express or Savana models.