2001-2007 Duramax 4" Downpipe Back Exhaust System w/ Muffler (S6004P)

MBRP's 4" ARMOR Lite downpipe-back system replaces the restrictive factory exhaust on the 2001-2007 6.6L Duramax with mandrel-bent, heavy-gauge aluminized steel tubing with fully sealed seams for rust resistance. It runs through a muffler for a deeper tone and exits single side. A 4" front pipe is included for trucks not running a catalytic converter.

Other versions of this system:

• S6004PLM: Aluminized steel, no muffler
• S6004AL: Aluminized steel, with muffler and 5" tip
• S6004409: T409 stainless, with muffler and 5" tip
• S6004SLM: T409 stainless, no muffler
• S6004304: T304 stainless, with muffler and 5" tip

Part Number: S6004P

• 4" mandrel-bent aluminized steel tubing with fully sealed seams
• Muffler included
• Single side exit
• 4" front pipe included for vehicles not equipped with a catalytic converter
• Bolt-on install using factory hanger locations, clamps and hangers included

• No exhaust tip included.
• Fits Extended Cab and Crew Cab configurations with the 6.6L Duramax engine only.
• MBRP exhausts are designed to fit all wheelbase and cab configurations unless otherwise specified.

• ARMOR Lite series, 1-year warranty

Installation Instructions

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• ?

  Will this fit my 2010 duramax. I’m looking to delete the DPF and go straight exhaust?

  No, you'll need to look at something like this HERE.