Super Duper Moderator
Join Date: Apr 2005
Location: Orlando, Florida
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255/30/20 front and 285/30/20 rear are the same outside diameter as the stock 18s.
There is only 1/2 inch difference in tire between the rim and the road when comparing 19s and 20.
If you want real performance, get some lightweight 18s, but since you're looking at cast MRR wheels, weight and performance doesn't seem to be a factor to you, so go with what looks best to you. Personally, I prefer the look of 20s. But if you don't want to lower the car, then you might want to go with 19s because the lower profile 20 inch tires give the illusion that the car is raised when it is really not.
'06 Autumn Copper FX35, '11 Alpine White Sentra & 2016 Red Hot Camaro 2SS