Originally Posted by SS_Firehawk

My personal opinion, 19's are plenty big. 20's will only reduce the performance of a performance car. The ONLY reason to go 20's is for aesthetics if you are into having the thin sidewalls and oversized rims. Having said that, the best performing tire for the Z are 18's, and the 19's are a great compromise between the two. The ONLY 20" rims I thought fit the Z well were the F14's.