2022-2024 Cummins EZ-Lynk OBDII Tuning - Available Now

Have questions? We have answers. Dirty Help Center

Introducing our new site Dirty Garage - your source for half-ton parts, off-road, and more.

Welcome to our store. Learn more

Closed Sept 30 for the National Day for Truth and Reconciliation. Back open Thursday, Oct 1.
1 3

Universal 4" MBRP Quiet Tone Muffler (M1004A)

(13)
MBRP
$309.99 CAD
Notices

We are unable to ship this product to P.O. boxes. Learn more

Ships from

  • Canada Pickup Available
    10+ available
  • United States Import Fees covered by Dirty
    10+ available

Purchase to earn 309  Dirty Dollars Learn More

This product ships for free to most Canadian locations! Learn more

Description

Fits: Universal

The MBRP 4" Quiet Tone M1004A Muffler is a 4" inline muffler add-on for any 4" exhaust system. Built with the same high-quality aluminized steel as your exhaust system, the M1004A is a direct fit into any truck with a 4" exhaust kit. The 4" Muffler will help fight drone, and keep your exhaust note under control while maintaining a throaty aftermarket sound. 

Part Number: M1004A

Features
  • Universal
  • 4" Inlet/Outlet
  • Aluminized Steel
  • Keeps Neighbors Happy

Dimensions:

  • Total Length: 30"
  • Body Length: 24"
  • Inlet/Outlet: 4" 
  • Diameter: 6" 

Videos

Questions and Answers

Don't see your question? Ask us anything about this product.

  • Will this help get rid of loud turbo whistle? My truck sounds like a jet when I first start it up, I'm trying to quiet it down a bit.

    Yes, this will help tone down the overall volume and take the "rasp" out of your exhaust, but it may not completely eliminate a loud, high-pitched turbo whistle on cold starts.

  • If I buy the 4 inch straight pipe MBRP system, will this go in place of the straight pipe section without modification? If a guy wanted to swap out the straight pipe with a muffler before a road trip.

    Yes, the Quiet Tone Muffler is designed to be a direct swap for the standard MBRP muffler delete pipe found in their 4" straight pipe systems. You should be able to swap them for a road trip without cutting or welding.

  • Does this muffler have packing in the chamber? Or is it hollow beyond the louvers that stick up on the interior? Will it remain quiet forever, or will it pack with (trapped) soot over time, eventually turning it into a straight pipe?

    This Quiet Tone Muffler features a spiral louvered core design and does not contain traditional packing material. Sound performance remains consistent over time, unaffected by packing burnout. Soot buildup may reduce muffling efficiency.

Customer Reviews

Overall rating: 5.0 / 5 from 13 reviews.

Customer photo review of Universal 4" MBRP Quiet Tone Muffler (M1004A)

This muffler is WAY quieter than you're probably expecting. Zero drone at highway speed, but an audible rumble during acceleration. Overall, this will take your straight piped honkytonk rig and turn it to a Cowboy Cadillac.

Landon B. 5/5

Universal 4" MBRP Quiet Tone Muffler (M1004A)

Customer photo review of Universal 4" MBRP Quiet Tone Muffler (M1004A)

If anyone is hesitant in buying this or saving money, just get this! I went back and forth if I should or should not and finally bit the bullet on this and have no regrets. Had a straight 4" turbo back on a 2013 Cummins and it was getting to be a bit obnoxious towing a travel trailer, but this took the drone I knew and "loved" and threw it out the window! Stepping on it isn't necessarily quiet, but definitely not stupid loud by any means. And a great tone as well. Compares to a full MBRP exhaust, but less than half the cost! 10/10, would buy again.

Cordell P. 5/5

Universal 4" MBRP Quiet Tone Muffler (M1004A)

Very easy to work with I really liked the muffler it had a od coupler on both sides making it easy to cut required pipe out and put the muffler in only needing two exhaust clamps or two band clamps. The exaust wasnt overly heavy it didn’t feel like I was putting additional stress on the exhaust

Austin B. 5/5 Verified

Universal 4" MBRP Quiet Tone Muffler (M1004A)

Dirty diesel did it again great customer service. Made my truck much quieter, and much more enjoyable and now I can tow without the headache. It was a super easy install.

Josh 5/5

Universal 4" MBRP Quiet Tone Muffler (M1004A)

Easy install. And definitely cuts down on the noise from just having a straight pipe. Definitely recommend if ya want to quiet down your cummins a bit. I had a 4” straight pipe and installed this and it worked great.

Paul V. 5/5

Universal 4" MBRP Quiet Tone Muffler (M1004A)

  • Endless Support

    A team on staff, ready to help before or after your purchase.

  • We sell what we use.

    We only carry the best in Diesel Performance.

  • Canadian. Eh?

    Located in West Kelowna, BC.
Back to top