TTI Exhaust system
I'm in the process of installing a TTI x-pipe system now for manifolds back. Except for the headpipes it has been really pretty easy and I would recommend it (not cheap though). I'll have a write up on mine as soon as the whole thing is done. There are other cheaper systems and I don't know about installing them, I know most of the trouble with A-bodies is with the headers so maybe other systems are just as easy and cheaper from the headers back, but the TTI system seems really well made and has been pretty painless to install. Oh, and I went with Dynomax Ultraflo Weldeds, the system comes with Super Turbos which are not quite as aggressive sounding.