I want to do a cat back replacement, but question/concern is about the noise out the pipe, I dont want something that Is going to be heard inside the truck (like the current rusted out muffler is), I wouldnt mind a bit of noise but dont want it to get annoyingly loud for sure. I've seen, and read a bit about the Nismo Cat Back, and have heard some have not been happy with the sound of it. Do they (Nismo)suppy something that is a larger diameter pipe than stock? I know that I am not going to get any better mpg's out of it, but I would assume that a slightly larger exhaust system wouldnt hurt performance. Has anyone bought a Cat Back setuup that they would recomend, again not looking at going louder,

the cheapest I have found for Nismo Cat back is on Ebay, 350bucks plus 60 s&h, has anyone bought from ebay, could recomend a trusty seller, or maybe found a similar, or better deal elsewhere that they could recomend? I would like to replace all the way up to the wye pipe as that is starting to look rough as well.