How can I improve the fuel efficiency of my Nissan GT-R?

I recently purchased a Nissan GT-R and while I'm in love with its performance, I'm not too thrilled about its fuel efficiency. Any tips on how I can improve it without sacrificing power?

To improve the fuel efficiency of your Nissan GT-R, try practicing eco-driving techniques such as accelerating and decelerating smoothly, maintaining a steady speed, and avoiding excessive idling. Additionally, regularly maintaining your car's filters and tire pressure can also help improve fuel efficiency.

One way to improve the fuel efficiency of your Nissan GT-R is to upgrade your exhaust system to a more efficient one. This will not only improve your car's performance, but also its fuel economy. Just make sure to do your research and choose a reputable brand.