How to increase the horsepower of a Nissan GT-R?

I have a 2016 Nissan GT-R and I'm looking to add more power to it. I've heard about different modifications like ECU tuning and upgraded turbos, but I'm not sure which one would give me the best results. Can someone with experience with GT-Rs recommend the most effective way to increase its horsepower?

As an owner of a Nissan GT-R, I highly recommend getting an ECU tune from a reputable tuner. It's a relatively affordable and easy way to boost your horsepower without compromising the reliability of your car.