Bought this muffler several years ago. Sounds the same on a Detroit as a Pittsburgh Power one I had.. 1/5th of the length, and one hell of a lot easier to mount. Bought another for replacement in future.
Very pleased with the service of 4 State Truck and their fast shipping! The muffler is a lot better than the stock one I had on my truck. With a little mechanical knowledge it's pretty easy to install. Over very happy with the product and will refer friends to shop with 4 State Truck in the future
At first on my N-14 it was quiet after a couple of miles it had a nice sound to it
EGT went up 50 degrees over straight pipe but my ear drums sure appreciate it! Truck was deafening loud before and now it's plenty manageable.
Bought the 180 degree muffler delete and did not like it. Was way too loud. Did not want to spend $600 on a Pittsburgh Power muffler so decided to try this muffler. This muffer sounds amazing(cummins), sounds like a truck(low and mellow tone) but not so loud that you will ever be bothered. Installation was a breeze, used one factory strap from pre existing muffler(stock). The Only thing is the muffler flow is not labeled so Some common sense is required.