When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Use a offset calculator to compare your current wheels to the new wheels. With the new dimensions, check the car with a tape. Do you clear the suspension, brakes calipers and fenders? Reference: http://www.1010tires.com/WheelOffsetCalculator.asp
Listen it's easy... in cali, the offsets you need by law are 18's. In Canada and most of the mid west states, people tend to use 17's as their offsets. Delaware you need 21's, as anything lower than that will result in an offset ticket. Now, in Utah you need 71's and on the East Coast except Florida you need 13's. However, the law may be changing in Florida from the current 15 to Cali's 18's, as 15's result in high speed deaths. Beware of Virginia where you are not allowed offsets.