Fits: 2011 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel

*Please call for availability*

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.

Features:

• Fully TIG Welded 11 GA Stainless Steel Construction
  
• Ductile Iron Cast EGR Connection w/ EGT Sensor Port
  
• Compatible with OEM & WCFab Turbo Down Pipes
• No Tuning Required
• Made in USA
• This kit works correctly with EGR and all emissions controls present for the 2011-2016 LML

Includes:

• Heavy Duty 2" Driver Side Up Pipe
  
• Heavy Duty 2" Passenger Side Up Pipe
  
• Includes Up Pipe and EGR Cooler Gaskets (5pcs)

Replaces:

• GM Part# 12657012, 12638302, 12644640, 12650925, 12637379

Notes:

• Will not work with aftermarket manifolds which alter the exhaust outlet location. 
• Not compatible with LGH Duramax Equipped Express or Savana models. 
• THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT IS NOT LEGAL IN CALIFORNIA