Originally Posted by Xmicro_SS
Man, I cannot believe how those exhaust guys drove your car that hard before break in........ not trying to make you feel bad, but I would have made them by me a new one...no BS. That is the worst thing to do before break in!
My car will not leave my site until broken in.
This is actually quite valid for doing breakin on a car these days. I am NOT condoning someone else doing it, but this is how I have broken in my bikes and race vehicles for the past couple of years of hearing about it. My 'stock' Cobalt w/ Stage 2 dyno'ed 15hp above what GM said it should be and was the subject of a couple of investigations by GM engineers who could not find any explanation for why it would do this.