Most efficient mod for $$$$$$

[iflyadesk]

Buy the book "Going Faster" by Skip Barber. Race craft is 1/2 academic and 1/2 application.

I've been instructing at the race track for years, and let me tell you that tightening the nut behind the wheel is the best bang for the buck you'll ever get. Bolt-on engine mods might be worth 1-2 sec a lap, a set of race tires would be worth 3-5 sec a lap, but four driving schools (about $1200) is worth 20+ sec a lap (if not more) and it will make you safer on the street too.

If you're short on cash (which I can't imagine owning a 987), the National Autosports Association (NASA) has a two-for-one worker credit deal. You work two weekends, and then you get to drive the third for free. This is an awesome way to learn because you can work on a corner and figure out all the race commands, learn the flags, and watch other people make stupid mistakes. By the time you get on the track you're a step up on your fellow drivers.