When I first got my truck I had an itch for a S366/S480 compound set up, but now I am looking at doing triples. I have a ATS Aurora 3000(58mm) that came with my truck, and I was thinking on get my hands on another one to make triples. I am not sure if the exhaust housing is to big or not. I am looking at making this set up this winter while I have my truck apart for a inter-cooler and all the piping.