Header back exhaust kits?

i've seen a jegs kit for a 73 challenger. it fir nice but was thin cheapy pipe and hangers in my opinion. have seen a few tti kits and they are really nice kits and nice hangers. never seen a accurate kit in person but from the feed back i have seen they are nice. i'd just want a full 2 1/4 system not 2" off the manifold and past the torsion bar. maybe they offer that as an option i don't know..