Hey guys. Been driving my m52 e30 for a while now, and it sounds like ASS. Current setup is obd2 headers, stock obd1 downpipes welded into OEM midpipes with a replacement cat, followed by a stock catback with a crappy single in/out muffler welded in (came with car). I got a hold of a used IE and Ansa catback, and I'm not sure which one to use. Any thoughts?
Pics of my setup

Pics of my setup


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