Got tired of being teased about running my stock catback, and probably choking off some horsepower, so I finally swapped it out. Keep in mind I already had a Borla adjustable and a Magnaflow...didn't like the sound of either, so stuck with the stocker for most of the Summer. Ironically, the new setup sounds damn near identical to the Magnaflow, lol...Maybe the new setup will free up a tenth or so. Car went 11.67@115 with stock catback FWIW.

I pieced it together for about 175 bucks total and the car actually "feels" better at most any rpm when driving.

Parts used:
$54.39 Dynomax #54064 I pipe
$66.39 Dynomax #53061 over axle pipe
$25.00 Force Pro-Series 3" chambered muffler (new, but secondhand)
$21.98 Riker 3" 90* elbow
$18.98 Riker 3" turndown spout
Five 3" Stainless steel band clamps (already had)

I did have to make/weld a hanger onto "tailpipe", but was able to use stock rubber hanger. I need to figure out how to keep exhaust from "moving"...It sort of moved around with stock catback as well. It doesn't hit anything, but in last video, you'll see what I mean by "move", lol.

Here's a couple quick videos...
One of car idling and revved, a couple others taken in-car, and another quick warm idle vid...

http://www.youtube.com/watch?v=HTk-3nvQUcw
http://www.youtube.com/watch?v=lh6eEhyWRWk
http://www.youtube.com/watch?v=67bF7AubHnU
http://www.youtube.com/watch?v=6rt9jZjr13E
http://www.youtube.com/watch?v=vh-wpPVwIEM

 

not too bad, esp for the $$

 

actually sounds really nice. Im lookin to do the same single 3" in 3" out. i might go with a hooker though. hows the muffler set up? center in offset out?

 

offset/offset seemed to give the best clearance and also put the tailpipe where I could use stock hanger

 

I made one similar but with a hooker muffler and a bullet in the i-pipe instead. Mine is very quite when cruising but really opens up when you get on it, I like it alot.