Pacific Performance Engineering 117000600 3-Inch Stainless Steel Downpipe for 2011-2015 GM 6.6L Duramax LML

The Pacific Performance Engineering 117000600 3-inch stainless steel downpipe is engineered to replace the restrictive factory downpipe on 2011-2015 GM 6.6L Duramax LML engines. The stock LML downpipe features an oval-shaped, crimped design with abrupt directional changes that restrict exhaust flow and hinder performance. This PPE upgrade eliminates those restrictions with a full 3-inch diameter round pipe for maximum flow.

Key Features:

• Full 3-inch diameter 304 stainless steel construction for durability and corrosion resistance
• Smooth mandrel bends ensure unobstructed exhaust flow and improved turbine efficiency
• Fully machined and TIG welded upper and lower flanges for precise fitment
• Includes woven titanium heat wrap with stainless steel clamps to insulate heat and protect engine bay components
• CARB Executive Order D-701-30 compliant - legal for street use in all 50 states
• Direct replacement for OE manifolds and compatible with PPE up-pipes

This downpipe delivers improved exhaust flow, reduced backpressure, and enhanced turbo response. The premium 304 stainless steel construction ensures long-lasting performance that won't rust or degrade like the factory component. Installation utilizes factory mounting points for a straightforward upgrade that transforms your Duramax's exhaust system performance.