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.
This Part Fits:
Year
Make
Model
Submodel
2015-2016
Chevrolet
Silverado 2500 HD
High Country
2011-2016
Chevrolet
Silverado 2500 HD
LT
2011-2016
Chevrolet
Silverado 2500 HD
LTZ
2011-2016
Chevrolet
Silverado 2500 HD
WT
2015-2016
Chevrolet
Silverado 3500 HD
High Country
2011-2016
Chevrolet
Silverado 3500 HD
LT
2011-2016
Chevrolet
Silverado 3500 HD
LTZ
2011-2016
Chevrolet
Silverado 3500 HD
WT
2015-2016
GMC
Sierra 2500 HD
Base
2011-2016
GMC
Sierra 2500 HD
Denali
2011-2016
GMC
Sierra 2500 HD
SLE
2011-2016
GMC
Sierra 2500 HD
SLT
2011-2014
GMC
Sierra 2500 HD
WT
2015-2016
GMC
Sierra 3500 HD
Base
2011-2016
GMC
Sierra 3500 HD
Denali
2011-2016
GMC
Sierra 3500 HD
SLE
2011-2016
GMC
Sierra 3500 HD
SLT
2011-2014
GMC
Sierra 3500 HD
WT
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Does it come with a warranty?
Any products listed will have a warranty provided by the manufacturer only. Stealth Diesel is not liable for any warranty. We can assist in warranty claims but we do not provide warranty on items we dont manufacturer. Most products have a 1 year warranty. For more information on warranty, reach out to us or the manufacturer for specific warranty details.
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We recommend reaching out directly to the manufacturer, but we are availble to assist with any issues or concerns for troubleshooting.
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