I wanted to hear from guys who have used only rear sections only that have dynoed before and after. I did a car with a rear section only and that car is running as fast as a car with a full system and not as loud either. can anyone supply dyno #'s to back me up.

 

rear section = axle back?
if so, then it depends on what kind of miffler, ie.. straight through, chambered, or twin loop. also the size and if its mandrel or crushed bent tubing will also have an effect as well.

 

I was under the impression that he meant no resonator chambers after the cat.