I do not want mufflers under the rear seat due to ground clearance. We have speed bumps around our area and I don't want to have to worry about them.
I know the factory did this and my car used to have the resonators under the rear seat. But I want to see if I can put a large enough round muffler (thru style) beside the tank without having to add the resonator/muffler under the seat. This is why I will go with the x-pipe to see if that helps bring down the noise too. Worse case and it is too loud, then I will add a 3.5/4" round muffler under the seat.


1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)