SKU: S6059304

MBRP 4" PRO Series Filter-Back Exhaust (2020 L5P Duramax)


The MBRP 4" PRO Series Filter-Back Exhaust System S6059304 will enhance the sound and style of your 2020 GM 6.6L Duramax L5P. MBRP includes everything you need for a complete bolt on installation that eliminates the factory muffler for an enhanced mild exhaust tone. It is a series designed and built for the serious enthusiast who will settle for nothing less. Constructed from T304 stainless steel it delivers you optimal durability that keeps on looking its best. Easy to clean and maintain this is the product of choice for owners of lifted vehicles, show trucks or who operate in severe environments. This system is back with a Lifetime Warranty from MBRP.


Built to Perform

You count on your truck to handle whatever you need it to do. With MBRP performance exhaust you can increase the horsepower and torque while lower EGTs. More pulling power, improved throttle response, greater fuel efficiency, with an MBRP diesel performance exhaust you will be amazed at what your truck can do.


Minimize Backpressure

The secret to getting more out of your diesel engine is to give it lots of cool, clean air. The only way that you can get fresh air in is to get the hot air out and your MBRP performance system gets exhaust out fast. Drop exhaust gas temperature by up to 200°F and set the stage for all the performance you want. An MBRP performance exhaust system is the starting point to getting the most from cold air intakes, programmers, modules and downloaders.


Easy Installation

MBRP systems are as much fun to install as to drive with on your truck. Bolt-on, no weld design makes installation a no hassle one and a half to two hour project. Everything is direct fit to the OEM hangers and you get all the clamps and parts you will need, all in one box, no matter what configuration of truck you have.


Sound & Style

Performance is one thing but at MBRP we believe that appearance and sound are just as important. Every MBRP performance exhaust system has been specifically tuned to get the optimal sound from your pickup. With our new stamped logo on the tip and our unmistakable styling, there's no question that you have the hottest performance exhaust on the road.



  • 5" Polished Tip
  • Bolt-On Installation
  • Corrosion Resistant
  • Enhanced Exhaust Tone
  • 4" Mandrel Bent Tubing
  • Eliminates Factory Muffler
  • T304 Stainless Steel Construction

    © 2023 by American Diesel Power


    (Current Orders or DD214 to qualify)

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