Opinions on this exhaust

[Shellback]

I've never purchased any ebay aftermarket parts but I'm seriously considering this http://www.ebay.com/itm/92-98-BMW-E3...43d1de&vxp=mtr

My current S52 TI has a really screwed up exhaust. Its a bunch of hack job welds, rattles like hell, and is way too loud.
When I dropped it off after the swap, the stellar tech said he couldn't use the OEM catback because there was no way it would fit. So he cannibalized some of the OEM exhaust parts and created frankenstein - a really poor job.

I need to solve this soon. Thats why I'm considering the ebay setup I posted above.
Other things to consider:
S52
Z3 diff
lowered

I could never check his story by trying to fit the M3 catback because he said it was in bad shape and tossed it...

I'm looking for a quiet exhaust. The current drone is giving me migraines!