Hello, does anyone have a sound clip of any cat back exhaust with Ultimate Racing o2 downpipe combo and high flow cat installed? I'm thinking about adding it on just don't know how much louder it will be. I'm running a Greddy/Trust dual Cat back right now

Thanks for the help.

 

I don't have any sound clips, but I'm running the UR o2/dp combo and testpipe w/ the greddy exhaust and it sounds good. The o2/dp didn't change the sound at all from just the test pipe and cat back/

 

notice a difference with the 02 housing downpipe?

 

^I threw on a bunch of parts at the same time, so I don't know...My best run is 12.49 @ 110.01, untuned and w/ a stock clutch. Bolt-on's do work on this car, lol.

 

Did you get the check engine light when you did the test pipe?

 

i also would like to know...and also how hard is it to install both?

 

^No CEL's at all w/ the UR testpipe, 4000+ miles installed. The o2/dp combo was a pain, but was achieved with some jackstands, the right tools and a lot of patience by myself in my garage.