ORIGINAL: mopar2ya
Had headers on a Nova 350-V8 with cherry bombs bolted directly to the header flange. That was it... no pipe beyond the bombs. It was loud but not as loud as when I unbolted the cherry bombs...
I think this set up would work for the v6 Challenger... but you would have to hang an exhaust tip out the valence just to fill the void...
I bought an old 77 Chevy pick up kinda like that...350 with headers and a short bent pipe with the red Cherry Bombs tips poking out right under the door. Redneck as hell but so fun to drive when you all of 23 years old!