Most efficient mod for $$$$$$

[j.fro]

The short shifter was my first mod, and I can really tell the difference when I drive someone else's car. However, doing some Auto-X and learning how to drive the car really makes more difference than anything. I wouldn't dare testing the car's limits on the street...the limits are waaay out there, and the consequences are dire. By auto-xing, you'll find out just how hot you can go into a turn, what happens when you brake in a turn, how quick the car brakes and accelerates in a straight line, etc. All of that made me reassess my "modification wish list".