PPE Stainless Steel Down Pipe for 2015-2016 Silverado/Sierra 2500HD/3500HD Duramax - 117000700

Key Features & Specs:

• High-flow stainless steel down pipe for 6.6L Duramax LML
• Fits 2015.5-2016 models with three-bolt flange exhaust connection
• Constructed from durable 304 stainless steel
• OEM reference part number: GM 12674630
• Reduces exhaust gas temperatures (EGTs)
• Improves turbo efficiency and throttle response
• TIG-welded flanges for strength and leak-free performance
• Smooth, free-flowing design for increased exhaust flow
• Includes woven titanium heat sleeve for heat management
• Retains factory sensor/injection ports (2x M20-1.5 and 1x M14-1.5)
• Compatible with factory or PPE up-pipes

Fitment:

• Only compatible with LML trucks using a three-bolt flange connection to the exhaust pipe
• 2015-2016 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax
• 2015-2016 GMC Sierra 2500HD / 3500HD 6.6L Duramax

Upgrade your Duramax exhaust system with the Pacific Performance Engineering (PPE) Stainless Steel Down Pipe, designed for 2015.5-2016 GM 6.6L Duramax LML trucks equipped with a three-bolt flange connection. Built from premium 304 stainless steel, this high-flow down pipe improves exhaust efficiency, reduces exhaust gas temperatures, and enhances turbocharger response. Precision TIG-welded flanges ensure leak-free durability, while smooth transitions maximize exhaust flow. A woven titanium heat sleeve helps control heat, and factory sensor ports are retained for seamless installation. Compatible with both OEM and PPE up-pipes, this is a direct-fit performance upgrade for your Duramax.