Mine's

Mine's is a tuning firm based in Yokosuka, Kanagawa Prefecture, Japan.

Today it sells many products, ranging from injectors to complete engines.

Aside from the Skyline GT-R, Mine's also sells upgrades for other cars such as the Mitsubishi Lancer Evolution, the Subaru Impreza WRX, the Nissan Pulsar GTi-R, and the Nissan Fairlady Z.

The Mine's Z is unusual because it remains naturally aspirated, unlike Z's from other tuners.

Mine's has also gained additional popularity through video games, most notably the Gran Turismo and Forza series.