-The YO pipe sucks. Doesn't fit well at all.(E body)-Hits the trans crossmember and interferes with the 4 speed reverse rod.
-The one sold by Gardener is better, but hit the T-bar crossmember on the R/S, and this was on two seperate cars.
- Supposedly the one sold by Badalson/Gibson is a well fitting part, but haven't tried one yet and have no real world experience.
- I will say this. I installed an NOS pipe on my Challenger(and one on another B body) and they just about installed themselves. They fit absolutely perfect, and have all the proper flats and reliefs in the pipe.
Your results may vary.....
MB