anybody have any good ideas for a muffler for a 7.3idi nonturbo.mine rusted off and i wanted something different and rerout it in front of the back tire. ALso thinking about increasing to 3" pipe.

 

glasspacks sound good, but will burn out eventually. 40 series flowmasters sound good too.

 

A non turbo diesel is going to sound just like a gas v8 at the tailpipe, so what ever you may have liked on one of them will sound just as good on your truck. My 86 has a flowmaster and it's too quiet. The diesel clatter is loud enough that I dont hear the exhaust at all, even if I stand next to the tailpipe.

 

can you tell me some about the IP and turning it up

 

It's not terribly difficult but it can be a pain sometimes. Go the list of posts in this forum and at the very top of the list are two posts, labeled "Turning up a 6.9 and 7.3 mechanical motor" and "Can we make this a sticky please". Either one of those posts will tell in great detail how to turn up your IP. I dont suggest doing it though until you have a pyrometer. The N/A motors generate heat a lot quicker and can quickly turn your truck into a lawn ornament.