MBRP 4" BLACK SERIES FILTER-BACK EXHAUST SYSTEM 5" Exhaust Boards will need to be

Boards will need to be trimmed on Double Cab Models

Featuring a stamped logo on the tip and MBRP's unmistakable styling

Unmatched ground clearance

our 1 or 2" GM Blocks are made from cast iron just like the factory blocks

2017 GMC Sierra 2500 HD 4WD

MBRP 4" BLACK SERIES FILTER-BACK EXHAUST SYSTEM 5" Exhaust Boards will need to beMBRP S6059BLK 4" BLACK SERIES FILTER BACK EXHAUST SYSTEM 2020 2021 GM 6. 6L DURAMAX L5P (ALL DOUBLE & CREW CABS) The MBRP S6059BLK 4" Black Series Filter Back Exhaust System will add a sinister look to the back of your Double or Crew Cab 2020 2021 GM 6. 6L Duramax L5P. This exhaust system features heavy duty aluminized steel construction and 4 mandrel bent tubing for optimal flow. A 5 outside diameter tip is included with this kit as well as all of