MBRP 4" SLM Series Downpipe-Back Competition Exhaust

01 - 07 6.6L GM Duramax (All Crew & Ext. Cabs)



  • Aggressive sounding system
  • 409 Stainless Steel construction
  • Comes standard with Muffler Delete
  • Two-piece tail pipe configuration
  • Available for Diesel only
  • Limited 5-year warranty
  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

Built from 16 gauge T409 stainless steel our SLM Series performance exhaust systems offer a value price without compromising on the quality built into every component. Featuring a two-piece tail wee replaced the muffler with an MBRP muffler delete pipe to provide you with the ultimate in free flow exhaust.Constructed to the same specifications as the top of the line Pro Series MBRP back this line with a 5 Year Warranty.
Please Note: This series may, with time, develop surface rust which is not covered by the warranty. Wintry road conditions and road treatments may accelerate this process.

This product is not available for sale in the state of California.


2001- 2007

Chevy/GMC 2500/3500

6.6L Duramax