MBRP Universal 4" Quiet Tone Muffler

From $139.99 to $244.99
Product Options
Universal - 4" Inlet/Outlet, 30" Overall
MBRP Performance Exhaust
$5 Price Beat Guarantee
Give your truck a custom exhaust tone with the MBRP Universal 4" Quiet Tone Muffler. Featuring a dual core technology that provides optimal flow, in conjunction with superior sound suppression. Perfect for over the road towing applications, the Quiet Tone Muffler helps reduce in-cab noise and drone. The 4" inlet / 4" outlet universal design allows this muffler to be used in a wide variety of applications including replacing a competitor muffler in a 4" exhaust system. 


  • 4" Inlet / 4" Outlet, 30" Overall
  • Multiple Material Options Available
  • Provides Superior Sound Suppression 
Product Options:
T304 Stainless Steel - M1004
T409 Stainless Steel - M1004S
Aluminized Steel - M1004A
Aluminized Steel, Black Coated - M1004BLK

Customer Reviews - Include your order number for a chance to win a $100 GiftCard

(28 Ratings, 5 Reviews) Average Rating:
Right Amount of Quiet
joe t (new jersey) 1/11/2016 9:19 AM
I have a 2014 ford. Did all the deletes and had it straight-piped for a couple weeks. It was just too loud driving around the neighborhood and too much drone on the highway. This muffler helped reduce some of the noise. Don't be under the impression this will make your truck "quiet". Mine still roars, but it certainly helps. I did not notice any difference in MPG's between the straight pipe and using this muffler. Hope this helps.
Just what I wanted
Paul (Montana) 3/28/2014 7:22 PM
Put the quiet tone 4" on my 01 Cummins with a 4" turbo back to dual 8" stacks. What a huge difference in sound compared to the strait pipe. At idle I can't hear the pipes from inside, and it doesn't become noticeable until 1600+. No drone on the highway which is great considering there's two big stacks right behind the cab. From what sound it does make it's a nice deep tone. If you want onnoxious sound then this isn't. If you want a quiet but throaty muffler then this is a good choice.
Re-Review after 500miles.
Jordan Drinkman (Downing, WI) 9/10/2012 11:13 PM
This muffler may work well, but I lost 3-4mpg dpending on driving distance. Im putting the delete pipe back in to get my mpg back. Wish I wouldnt have bought it....
quiet sound
Drinkman (downing wi) 8/22/2012 12:23 AM
Put this on my straight piped 6.0 powerstroke and it quieted the engine noise down, wish it would have quieted the turbo down a bit, but its not bad. Can actually drive into town again lol. Its a good buy overall
MBRP Muffler
Arlie A. (MT) 2/7/2012 9:32 PM
This muffler has the perfect sound and no drown down the highway. it makes my 01 Dodge sound amazing. Great severice from XDP and fast shipping.