None man. Run the car stock. Get yourself a great set of tires and you’ll be golden. I run the s2000 almost 100% stock. I had the AP1 rims which don’t have jack shit for options on tire size. So I went and bought a set of 17" rota torques (which I wish I didnt – shoulda saved my pennies for the rpf1’s) and went with a 215f, 245r. Thats the extent of my modifications.