Wehrli 11-16 Duramax LML Stainless 2in Up Pipe Kit w/ - WCF100197Find parts that fit my vehicle

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). 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.

Exhaust systems are a great way to enhance the looks, sounds, and performance of your vehicle.

Pop the hood on a diesel enthusiast's truck somewhere in North America and you may find my company's logo on the engine. Welded to an intake or intercooler pipe, this logo represents an awesome responsibility to the diesel enthusiast community that has supported WCFab over the years. It's a responsibility and commitment to ensure WCFab products meet the highest standard of craftsmanship and fitment. We care enough to put our name on it.