Best mods for a Nissan 370Z?

I just bought a Nissan 370Z and I want to make some modifications to improve its performance. What are the top mods you recommend for this car?

First thing you should do is upgrade the exhaust system. Look into getting a high flow cat-back exhaust for better sound and performance.

Invest in a cold air intake. It will improve air flow to the engine and give you a noticeable increase in horsepower.