Nismo's kit for the GT-R frightens the Godzilla in your Nissan
The Nissan GT-R cannot be named but Godzilla. The GT-R is how a Godzilla could be represented on 4 wheels and if you know your chicanes well at the local race track, you can feel like you're taped to the back of one.
The newest tuner is Nissan’s in-house guys Nismo.
Nissan's Nismo upgrade for the Nissan GT-R tunes the engine and transmission management software, which you can only rent. The Nismo kit gives the Nissan GT-R a better low end torque, increased boost pressure, and better low-end boost response. It allows faster downshifting and the electronic speed limiter is lifted to 199 mph.
If building an ultimate Nissan GT-R is in your life's itinerary, then Nismo's kit is the best way to start proceedings.
Source: FancyTuning


