so upsolute is in Dallas where you can buy and get installed that woud be great and why do you say get exhasut then chip is it because it makes the most difference. If so I can see what you are saying. So did you get a cat back or just a muffler? On your opinion do you think it is better to get the borla cat back or just the muffler? I peered under my car and noticed the stock exhaust looked mandrel bent with NO KINKS!! if so that is all we need no need for the cat back maybe just some free flow cats. I like to see the opinions of other Xfire owners. Also did the Magnaflow make the exhaust realy loud or just a nice hum until you step on it? Sometimes they sound like a pissed off misquito. I have owned a Grand National 89 with 50k orig miles on the whole car never recked and it sounded good and it was a 6 cyl. and didnt sound like a pissed off misquito.