The GMC Sierra 2500 HD Performance Exhaust by Wehrli is expertly crafted to enhance the performance of your 2011-2016 6.6L LML Duramax-powered truck. Constructed from heavy-duty 11 gauge stainless steel, this up pipe kit offers durability and increased exhaust flow for serious automotive enthusiasts.

Ideal for both heavy-duty towing and high-performance applications, this exhaust system improves turbo spool-up and decreases exhaust gas temperatures (EGTs). Designed to replace the prone-to-leak, lightweight OEM up pipes, it ensures a robust upgrade. Its full compatibility with OEM style exhaust manifolds or WCFab Billet Exhaust Manifold (Part Number WCF100363) makes it an easy bolt-on enhancement—no tuning required. Additionally, with its heavy-duty stainless bellows, you can be assured of a leak-free performance.

Features

• Constructed from heavy-duty 11 gauge stainless steel
• Includes gaskets for a comprehensive installation
• Compatible with OEM & WCFab Turbo Down Pipes
• Fully TIG welded for enhanced durability
• Ductile iron cast EGR connection with EGT sensor port

Whether you're aiming to upgrade your current setup or replace failing parts, the Wehrli Performance Exhaust offers reliability and performance. If you have any questions, feel free to contact us at 512-982-9393 in Texas, or 562-981-6800 in California. We also provide installation and customization services at our locations in Austin, Texas, and the Los Angeles, California area. When considering multiple items, contact us for potential shipping discounts. Rest assured, installation on premises is available at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov