Meh. I've never had any good luck with exhaust shops around here. They can do some simple things, using crushed or regular bends, but ask then to make a real exhaust and they shy away from it. If you're gonna be happy with bends that reduce flow and an exhaust that will scrape and/or bang on suspension parts and the body, then that's cool. I did the true dual thing once on an fbody and got tired of it. It's takes some money/time/skill to get a really good system that will go over the real axle as not to scrape. I just went with a proven combo, 3" mandrel bent Y pipe into 4" merge with a cutout.