Chipstien WHere did you get that muffler? Is it a 4 or 5?
It is a Donaldson M100463. It has 5" inlet and outlet and is 10" in diameter and 51" in length. It can be bought at any big rig shop that can get Donaldson mufflers. When I first made this system I tried running straight piped but it was far tooooo raspy and tin-ny. Almost reminded me of a ricer with a deeper tone. So I went to Exhaust Flow Systems and had them look up the highest flowing muffler with 5" inlet and outlet and they came up with two different # numbers. M100463 and M090535. Both are used primarly in Offroad aplications so they won't make the truck super quiet. They are the same muffler but the M100463 is 1" larger in diameter so its rated attenuation is from 13 - 18 dBA while the M090535 is 12-17 dBA. I was just looking for something that took that nasty raspiness away. This was the ticket. It toned down the truck slightly and got rid of that rasp. Yet still sounds great.Originally posted by Bodybomber
Chipstien WHere did you get that muffler? Is it a 4 or 5?