I'm running one mate, very nice piece of kit, it did sit up against my exhaust at first but it was the back edge (back bar) of the brace that was catching so i used some spacers to spacer the back of the bar down abit and it fits a treat now, made a nice difference, made it more responsive and just made it feel more complete, wouldn't say makes you go faster just gives you more confidence which is what its all about.
Hope that helps mate
~Nick @ Tuning Developments