The pack includes a set of race-spec Bilstein Damptronic adjustable dampers, stiffer front (18.5kg/mm) and rear springs(9.6 kg/mm) and new 20-inch Rays forged aluminum wheels wrapped in Bridgestone RE070R run-flat tires, sized 225/40 and 285/35, front and rear.
Nismo also added a new lightweight titanium exhaust system that removes 11 pounds from the GT-R's overall weight and a set of the carbon fiber backed and leather trimmed manually adjusted bucket seats that save an extra 13 pounds. Nissan supports that at the Sendai Hi-land Raceway, the GT-R NISMO Club Sports outrun the standard GT-R model by a full second
As for the 370Z or as it's called in Japan, Fairlady Z, the NISMO S-tune package features a more rigid body brace, sports suspension and the "Aero Package" body kit.