| The 300ZX is a beautiful car. If he feels bigger brakes/wheels enhances the look of his Z (independent of performance) that's his business. It's only poser if he fools himself about the reason for his purchase. I think the point SimaYi/LJZTT are trying to make is this - rotors are bigger so they can dissipate more heat after repeated stops. Most likely, very few people are pushing the car hard enough to notice a braking performance difference between 13" and 14" rotors. If you think it looks cool and it's worth the extra $$ then go for it. I personally think it looks wicked. Back on topic - sorry I only have 18's but they're 14.25" rotors. 
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