Has anyone used one of these?
My car lacks a rear CAT, right now it just has a straight piece of pipe in there.

 

oem or go home, aftermarket cats suck. wont pass emissions and make noise. its the thickness of the metal they're made out of, cheap welds.

 

You could always just get a test pipe. Much louder and Won't pass emissions. But that's kinda the point of a "TEST" pipe. You install it after you pass emissions and then swap the Cat back on when you have to get your emissions renewed. Kinda a pain but you get a meaner growl and a little bit more power.

 

I don't care about 'emissions' there is no test here. I could replace the whole system with just tubing if I wanted, but I don't think I could bear the noise.

 

magnaflow hi flow cat is the way to go. My boy passed emissons with it.