If you're looking for a decent and cheap 2.5" exhaust, SSautocrap sells the OBX midpipe (cat to the rear axle) on ebay pretty cheap. I got one for $90 shipped. It's 304 SS Mandrel bent pipe with a resonator. It bolts up to stock, so the pipe tapers down at the end a little, but I was planning on cutting it off and re-welding in those places if I need to. It would have cost me that to get crush bent aluminized around here, so it was a good deal for me. ymmv.

 

Personally, a 3" down pipe to a 3" exhaust cut out to a 3" high flow cat then a 2.5" exhuast is sweet. I'll be running that set up. When I want all my power/flow I just open the cut out.

It's a bit pricey cause the exhaust and cut out themselves are brand name but the rest is ghetto.