1999-2002 Nissan Skyline GT-R (R34) CCB Big Brake Kit | Brembo GT6 6-Piston1999 2002 Nissan Skyline GT R (R34) CCB Big Brake Kit Genuine Brembo GT6 Front + Genuine Brembo GT4 Rear Setup The R34 Skyline GT R is heavy enough and fast enough that repeated high speed braking can overwork conventional iron hardware, especially on cars used for track days, canyon driving, or sustained high power street builds. This StopFlex Kit Upgrade pairs 380 mm front and rear carbon ceramic rotors with Brembo V6 GT6 GTS6 6 piston front options