[thewoahna]

I have a high flow cat and a test pipe, I used the high flow untill I had to have e-check done, then took it off and put the pipe on. I am good for another 2 years. Anyway, mine also cost about $35 from testpipes.com I would have to say that I do not notice a whole lot of a differance in performance, but it does make it louder and helps a little with the miles per gallon.