deputydog:

Was wondering if you knew....Did they just chop a 1/4" off the new ones or did they actually make the pipe(s) wider? (On the Slimline)

Thanks...

P.S. I'm going to email Bisson and find out the dimensions of their DA50 Pitts muffler. With it being already tapped for smoke and at a cost of $98, that's not too bad. I just don't want to deal with the issue of the pipes on this one being too small or turned or anything else that would restrict flow.