How many of you have performance upgrades and do you now regret getting them? I checked with a local shop, and I was told that they had an aftermarket exhaust system, intake, and computer chip for my car. I don't want to **** with the computer chip, and I read that the intake was really more for extra power at higher torque, which I'm not too interested in. That leaves the exhaust system, and the Borla looks nice, it just bolts on and it's all stainless steel. But would I even be able to tell the difference after upgrading it? I'm on a pretty low budget and I'm trying to decide which to start on first: looks or performance.