OK here's what I've got so far. The dims are roughed in, I'll need to go back and fine tune this.
View attachment 1715796188 For my car I have 3.5" collectors on hedman Huslers. I'm running 3.5" extensions, 18" long, into 2.5" exhaust. I'll probably do a flange of some kind on the end of the extension to make it easy to drop the exhaust at the track.
What I could do if I had a batch of these made is to offer 2.5/3/3.5 diameter extensions then provide reducers to the 2.5" tailpipes. If any real interest here I could look at other variations.
