i don't want to ruin your car's birthday, but the borla is neither 'loud' nor is it performance-enhancing. it does add a nice boom (sounds like the stock exhaust, but an octave lower) up to about 2,500 or 3K rpm, after that its stock exhaust sound all the way. don't get me wrong, i love mine, but i think they could have done a better job expanding the rpm range in which the sound is produced.

congrats nonetheless.