MBRP 4" Performance Series Downpipe Back Exhaust System 11-15 6.6L Duramax LML
- 4" Aluminized Steel Tubing
- High Flow Performance Muffler
- 1 Year Warranty
Not for sale or use in the state of California.
- Installation of this exhaust system must be used in conjunction with a tuner/programmer specifically designed for preventing trouble codes that would otherwise come from running a competition (turbo back) type of exhaust system.
- For OFF Road/Race Use Only
- This kit is only intended for fitment on 2011 through early 2015 models. This system will not fit 2015.5+ models that feature a three bolt flange at the base of the turbo direct pipe, only a v-band flange is intended for fitment. If you have a 2015 model year, please verify.