Re: Cut the muff?
What I am saying is that unless you have a reasonable amount of pipe, you lose torque due to loss of backpressure. Why do you think diesels always run huge pipes, that are usually about 3' long? Size of the pipe has alot to do with it, but unless you have at least 18" beyond the muffler, You're gonna lose torque. I've learned this from my bad experiences with cutting pipes, mufflers, hacking exhausts, etc.