Originally Posted by Hancock
^the tires that are already on the car are 205/50/R15...which were on when i bought it. so i was just basing off that.
also my car is lowered. dunno if that makes a difference. im a car n00b. lol.
For 15" rims, the stock size is 195/60-15. An optional size would be 205/55-15 (it's a couple of tenths smaller in diameter but will work fine. Both will work with a lowered suspension as long as you don't have any radical offsets on the wheels. The smaller tire you're currently using is costing you money in terms of gas mileage. They actually modify the final drive ratio and you end up turning higher RPM especially at higher speeds (freeway etc.)