Hey Jetz,

The S/C doesn't do much of anything for off-the-line performance - it adds power at the high end of engine speed. As for fuel consumption, our standard joke is that it gets much worse, because it's so much fun to stomp on the gas all the time! In regular driving, though, I think I lost 1-2 mpg after installing it, but I definitely let the revs run higher now.

You can improve off-the-line performance with a freer-flowing exhaust. I put in 2.5" piping from the catalytic convertors and a high-flow Flowmaster muffler after I did the supercharger, and it helped signficantly. The downside is that you get LOUD in the process!

Good luck!