Originally Posted by sonoronos
I took a look at the generic "Street Prepared" rules and I am having trouble seeing why someone would compete in SP vs stock classes. It sounds like a way to spend lots of money to compete in a class that only allows you to improve the car "so much". Forgive me if I sound ignorant, I'm not much of an SCCA racer.
Several reasons. You can put aftermarket springs on it, wider wheels, bigger tires, more power, and less weight. All add up to make a much more fun car. If you wonder why people spend so much money go take a look here
http://http://www.siastuning.com/yellow4sale.htm
Plus I love tinkering with things. That might be why I have spent the last two mornings measuring my Koni shocks to the length of my OE shocks to figure out a way to have Koni add more droop travel to the rear so and still stay stock class legal.