I've got a 3inch custom mandrel bent exhaust with a 3in 3out thermal turbo muffler. Sounds great and exits the proper way. Not loud at all. Nice and soft.
PM me if your interested...$220 and its yours.
That's a video of it, it was open dumptube...thats where most of the noise was coming from. It was on my built turbo GSR with a 70 trim.