EBC Redstuff Brake Pads for G8X M3 M4 Select::Front (DP32454C) The ring gear teeth are Discount The ring gear teeth are integrated onto the flywheel unlike an aluminum flywheel where the ring gear is pressed onto the flywheel and has the possibility of separating from the flywheel due to the different expansion coefficients of aluminum and steel The 85mm (3 3 8") Prosport Digital Premium Evo Series electronic speedometer gauge features four colors in one gauge with peak recall and warning features built right in • Superb material for Prestige imports European and Asian cars you should be prepared for the pad to emit an odor or even exhibit some smoke as the pads burn off what we call "surface volatiles"