What Size Tire?

[tomtom]

im trying to buy street slicks for my 93si. i got a supercharge ls-vtec with a ls tranny.
i run 17 inch wheels daily (205/40zr17)but need street slicks for weekend. i want to mount some on my 99si 15s. what size should i get??
thanks

 

[Slo86GT]

205/50/15 Nitto or BFGoodrich drag radials... Ditch the 17's for racing.

If you're on a budget, Falken Azeni's in the same size work wonders for about $60 a pop.