What are some tips for increasing the horsepower in a Nissan GT-R?

I recently purchased a Nissan GT-R and I am looking to increase its horsepower. What are some modifications or upgrades I should consider?

First and foremost, make sure to invest in a quality air intake system to improve air flow and enhance engine performance.

Consider upgrading your exhaust system to a high-flow, lightweight option to maximize power and reduce weight.