pacesetter is a good kit for the money. I found it to be a good price compaired to a shop. the tube is 2.5 and fits nice I got mine for $270 shipped from performance center (
www.performancecenter.com) when it was on sale but now the price is $308 free shipping. for the price its a good kit for the price.
the borla kit is an awsome kit but for $800+ its a little to expensive for most. this kit is ss and will last a life time prob. but its $800 and a little steep for my wallet.