Hi Guys. Ive got a s13 thats going to my weekend car. Mainly used for motorkhanas, hill climbs and a bit of track work. What size semi slicks should i use. Theres a nice deal on kumhos on another popular import site. Ive got about 140rwkw, tein flex suspension, s14 brakes, and its lightly stripped. Ive currently got 17X8 and 17X9 wheels so im thinking 225/40 and 255/40, but is this a bit excessive for my power levels. Should i buy some 32gtr wheels and run 225/40s all round