Noice.
One thing I didn't like about the G37x coupe I had was how much fender gap there was. I ended buying a set of coilovers (similar brand to BC) for about $1400 and it was super easy to install. I'd highly recommend it! Also, if you're looking for a better sound without going full out custom exhaust, I'd recommend a Top Speed axle back, only cost less than $400 shipped to Calgary, sounds amazing, nice deep growl that isn't loud at all.