Installed on 2004.5 5.9L Cummins. Truck was previously straight piped. It was an easy install and quieted down the truck quite a bit. Still has a nice deep tone and most importantly got rid of the in cab drone!
Verified purchase: Yes | Condition: New
I had a 4” MBRP straight pipe on my 2006 LBZ Duramax. It was cool for years, but the insane loudness finally started to get to me. I came across this muffler and decided to give it a try. WOW! The overall quality, easy slip-fit & clamp, and sound were more than worth it! I can still hear all the turbo whistle, but the overall engine noise and interior drone are cut WAY down. Sounds very njcd, but not obnoxious. Just what I wanted!
Verified purchase: Yes | Condition: New
Awesome muffler. Welded up very nice. Can easily fit into any 4" diesel exhaust Straight through design so you wont lose any power just takes away that drone sounds of a common rail when its straight piped. Sounds great
Verified purchase: Yes | Condition: New
Good, fairly quiet,I bought 3 ,wanted my truck drone free so I took one of the 3 I bought ,cut it in half ,welded with stainless to one of the other 2.made a muffler 45" long. Cut off a 12" section of 4" exhaust pipe, put new longer muffler on .works great. I made 2,one using fiberglass that came with it.the other I used stainless steel cleaning pads,it about 48,packed it full, the sound is simular. Both mufflers drone free.
Verified purchase: Yes | Condition: New
I originally had a 4 inch straight pipe from the turbo back and had to put a muffler on my truck for it to pass commercial inspection, this muffler quiets the inside down but still sounds good outside but you can't hear the whistle like it used to so I'm going to put dual 6 inch stacks on my truck with this muffler but it's a good muffler and I'd buy another one with no hesitation.
Verified purchase: Yes | Condition: New
If your diesel is obnoxiously loud with a straight pipe, put this on and you’ll still have great tone but without the drone and being the obnoxious one of the neighborhood!!
Verified purchase: Yes | Condition: New
Easy install. Straight through design no restriction. Dropped sound level in the cab a lot. Good buy
Verified purchase: Yes | Condition: New
Its heavy, but quieter then the straight pipe. Got rid of loud drone noise in cab. 99ram5spd. Sounds pretty good.
Verified purchase: Yes | Condition: New
Nice part
Verified purchase: Yes | Condition: New
Installed this muffler on my 4 inch straight piped D250 Cummins. Truck sounds still pretty good but without the sharpest edges.
Verified purchase: Yes | Condition: New
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