Hey guys, so I'm new to owning a car, I've had trucks and SUVs my whole life and I'm really loving my G35. I was wondering, is there anything recommended to do to it off the bat? I got her with only 29k miles and the car is in great condition. Only thing I've done is put good wiper blades on. Haha. I was thinking about a 15% tint, but other than that I'm kind of clueless. The mileage could be better, I'm averaging only 16-17mpg at the moment. Although that could be because I'm driving it hard and having fun in it. Should I put a K&N air filter in? Change my exhaust somehow?

I'm an absolute newbie to modifying cars. Please excuse the ignorance!

Thanks in advance for any suggestions.

Cody