See it. Hear it. And read what truck owners and reviewers are saying about the Thunder Muzzle.
The Cummins Camper: Life On The Road With The Thunder Muzzle
Full Review: Quiet to Straight Pipe, Instantly
Dyno Test: Does A Muffler Reduce Horsepower?
5-Inch Install On A 24V Cummins
Quick Look: Valved Diesel Muffler
Thunder Muzzle Review
What Reviewers Are Saying
No Power Loss On The Dyno
Dark Iron Diesel's dyno test found no measurable horsepower or torque penalty between open and closed modes — around 390 hp and 810 lb-ft either way.
"No-Compromise" Design
Diesel Army described the Thunder Muzzle as a true no-compromise solution: straight-pipe sound when you want it, a quiet comfortable ride when you're towing.
Praised By The Diesel Community
Truck forums highlight the stainless construction, the serviceable rebuildable design, and an owner who jumps into community threads to answer questions directly.
1 / of3
From Thunder Muzzle Owners
★★★★★
Instructions were simple to follow and it worked exactly as described! I have a 2020 l5p with a 5 inch exhaust and the drone while pulling a load was terrible, the thunder muzzle made a big difference and now I can pull a load in peace and jam my old country tunes at the same time and actually hear something
★★★★★
Awesome product. 5” thunder muzzle on a 2010 ram 2500 cummins. This is what you call real quality MADE IN THE U. S. A. craftsmanship. I cant say enough about the quality of every component right down to the wire and instructions. I highly recommend glory days
