EBC Ultimax OE Style Disc Kit (RK621) 1814 Micro form factor = compact

Micro form factor = compact + lightweight

600390 is a Prolite flywheel

This system features 4" bright chrome on T-304 stainless steel tips

ACT Difference:100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

which only removes a tiny amount does not render the disc/rotor below minimum thickness if done correctly

EBC Ultimax OE Style Disc Kit (RK621) 1814 Micro form factor = compactEBC Premium OE Replacement Brake Rotors GEN 3 EBC Brakes are quickly switching to its latest Gen 3 silver grey disc rotors. All disc rotor materials and drill or slot patterns will remain the same except the base rotor will be Silver Grey. This new surface coating is a highly corrosion resistant rust prevention coating and is now on all current production of EBC Brake rotors. New GEN 3 Silver Grey Rotors and the Logic Behind It In the past few years,