I think you should do whatever rocks your boat. I have modded mine and still going. My car handles nothing like stock with all the suspension upgrades. Every time I drive it, it makes me giggle like a kid!!! You get to create your own driving experience and it's okay to change your mine along the way...I did!
I will say that if I was looking at purchasing a 15 that I would do a sport touring and change the body kit. The 15 Nismo just does not do it for me...I like the 09 thru 14s body kit way mo better!!!
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