Running a 5" exhaust has its benefits for heat dissipation, however it can have its downfalls, also, and mostly in terms of drone and in cab noise. Its amazing what a difference can be heard from simply going from a 4" to a 5" exhaust, and the additional sound that comes along with it. For those that want to reduce the amount of exhaust drone as much as possible in their 5" exhaust, MBRP has the solution!
Introducing MBRP's new 5" Armor Plus Quiet Tone muffler. Featuring a high flow 5" spiral louvered core, it will fit most 5" performance exhaust systems. With over TRIPLE the sound cancelling packing, this is the muffler you want to tame that diesel drone.