Polar Diesel 2001-2007 Chevrolet/GMC Duramax 6.6L 4" Downpipe Back Stainless Exhaust

2001–2007 GM 6.6L Duramax 4" Downpipe Back Stainless Steel Exhaust (Muffler & Muffler Less)

Upgrade your 2001–2007 GM 2500HD / 3500HD 6.6L Duramax with this 4-inch downpipe back stainless steel exhaust system. Designed to increase exhaust flow and lower EGTs, this system improves turbo spool, throttle response, and overall performance while delivering the deep diesel sound Duramax owners want.

Built with pre-welded contour bends, a machined turbo flange, and heavy-duty TorcTite® clamps, installation is simple and secure. Available with a muffler or muffler less option to match your preferred sound level and performance goals.

Features

• 4" Downpipe Back Stainless Steel Construction
• With Muffler or Muffler Less Options
• Increased Horsepower & Torque Potential
• Lower Exhaust Gas Temperatures (EGTs)
• Machined Turbo Flange
• Contour Bent Hangers
• TorcTite® Clamps Included
• No Bungs
• Single Side Exit
• Direct Bolt-On Installation

Fitment

Fits 2001–2007 GM 2500HD & 3500HD 6.6L Duramax
Extended Cab / Crew Cab
Short Bed / Long Bed
Dually Models