John Hervey, Do you want to volunteer to make a new exhaust system? (No sarcasm intended.) Making curved round stainless pipes requires different tools than angular shaped air boxes. I'm familiar with the later. Each time I check my stock air filter, I hate putting it back in when I would rather replace it with a K&N. Since the exhaust system is maintenance free, I don't think about it as often. There is a sadly rusted out DeLorean frame with what is left of an engine in town that I might buy from the owner. (All of the valuable parts have already been scarfed off.) Having that to get dimensions from, I might try to design a better exhaust IF I can get someone to make it for me. If I showed up to an exhaust shop with some tubes of 18-8 stainless steel, would that be too hard on the bending equipment? Walt Tampa, FL -----Original Message----- From: dherv10@xxxx <dherv10@xxxx> >Walt and others, Why do a lot of work on the intake end, when your >just going to run into a problem on the exhaust end.