Wehrli 3" Downpipe for 2004.5-2010 Silverado/Sierra 2500HD/3500HD LLY LBZ LMM Duramax - WCF100120

Key Features & Specs:

• Brand: Wehrli
• Part Number: WCF100120
• Product Type: Downpipe
• Engine Compatibility: 6.6L Duramax (LLY/LBZ/LMM)
• Diameter: 3 inches
• Material: Steel
• Finish: Black high-temp ceramic coating
• Heat Management: Pre-installed heat wrap
• Turbo Compatibility: OEM and drop-in style turbos
• Function: Replaces restrictive factory downpipe
• Tuning Required: No
• Installation: Direct bolt-on
• Warranty: 12 month warranty

Fitment:

• 2004.5-2005 Chevrolet Silverado 2500HD 6.6L Duramax (LLY)
• 2004.5-2005 Chevrolet Silverado 3500HD 6.6L Duramax (LLY)
• 2004.5-2005 GMC Sierra 2500HD 6.6L Duramax (LLY)
• 2004.5-2005 GMC Sierra 3500HD 6.6L Duramax (LLY)
• 2006-2007 Chevrolet Silverado 2500HD 6.6L Duramax (LBZ)
• 2006-2007 Chevrolet Silverado 3500HD 6.6L Duramax (LBZ)
• 2006-2007 GMC Sierra 2500HD 6.6L Duramax (LBZ)
• 2006-2007 GMC Sierra 3500HD 6.6L Duramax (LBZ)
• 2007.5-2010 Chevrolet Silverado 2500HD 6.6L Duramax (LMM)
• 2007.5-2010 Chevrolet Silverado 3500HD 6.6L Duramax (LMM)
• 2007.5-2010 GMC Sierra 2500HD 6.6L Duramax (LMM)
• 2007.5-2010 GMC Sierra 3500HD 6.6L Duramax (LMM)
• Replaces OEM Part Number: 98050150

Upgrade your Duramax exhaust system with the Wehrli WCF100120 3" Downpipe, designed for 2004.5-2010 LLY, LBZ, and LMM 6.6L Duramax engines. This high-flow steel downpipe replaces the restrictive factory crushed pipe to improve exhaust flow, turbo efficiency, and overall performance. Featuring a durable black high-temperature ceramic coating and pre-installed heat wrap, it helps reduce under-hood temperatures while maintaining long-term durability. Engineered for use with OEM or factory-style drop-in turbochargers, this direct bolt-on upgrade requires no tuning and installs easily.