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Your cart is empty.MBRP M91031 MBRP high flow performance diesel mufflers are now available as individual part numbers. Get the best sounding muffler on the street today. Each muffler boasts a fully welded construction and is designed to take all the abuse you can throw at it. They are available with 4" and 5" inlets.
Garrett Moody
Reviewed in the United States on June 13, 2024
Worked great, direct replacement for my section of MBRP,s turbo back straight pipe kit for my 1997 cummins, sounds good, less raspy but still loud just better sounding in general.
CK
Reviewed in the United States on August 9, 2020
Install: I cut 24” of straight pipe out, went from a lap joint that already existed in my FloPro 4” stainless exhaust. Since I could reuse that clap, I only needed to buy one lapped clamp.Sound: deeper sound, slightly muffled, still loud, but instead of making a racket of noise it’s now deep toned and sounds good. Not quiet, but toned, and not harsh like before.This is on a deleted 6.7L cummins 2nd gen stainless manifold and BW S463 Turbo
Benjamin Johnson
Reviewed in Canada on January 27, 2019
Put this in my 2004 Ford 6.0L to reduce some turbo whistle after straight piping. I find cab drone much worse now though, you can’t have a conversation at normal tone. Otherwise great fitment and came on time.
Oliver
Reviewed in Canada on August 31, 2018
Just what I needed for my Ram3500. Made my straight piped Cummins have sound instead of noise. Got rid of hwy drone tone.
Clayton
Reviewed in Canada on March 27, 2017
Showed up on time. Was exactly as described. Sounds great on my 5.9 cummins. Only thing was it did not come with direction of flow. Easy google and good to go.
Rob Brydges
Reviewed in Canada on November 13, 2017
Arrived quickly and sounds great!
Customer
Reviewed in Canada on June 16, 2016
Had my truck straight piped for 3 years. Got sick of the excessive noise. Still sounds great and for the price you can't go wrong
Neil
Reviewed in the United States on September 7, 2013
Advertised as MBRP muffler but it is a similar product AP xs2772. The welds look good and sounds ok, the fit is good but does not have MBRP anywhere on the product or packaging. So far so good, but i found same product on line for $49 plus $9 for shipping.
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