redsx13 wrote:what i ment is that 16s w/ lower profile tires look nice, but im not going for looks. i will just go w/15's if they will preform as well or even better.
in my honest opinion, 17's are perfect for an s13. Depending on how you make your wheels look (offset and tire selection), they fill the wheel wells waay better than 15's and 16's do. Find pictures of s13's with 15" wheels and compare them to ones with 17" wheels, and you'll see how much off an aesthetic difference it makes. 15's are small imo. When you start to add aero parts (aftermarket bumpers, sideskirts, or lips), a lot of people tend to go into the 18" category... but lets keep that look for a later time
As far as performance goes, it depends what type of performance you're looking to get. Obviously, you wont be drag racing with 17's... but as far as sidewalls go, the stiffer, the better for drifting... etc. It really all depends on what you're planning to do.
however 15's and 16's are more preferred for drifting only due to the fact that tires are cheaper in those sizes.
16" > 15"
get 16x8 +10