StopTech Power Slot RotorsStopTech Power Slot are a direct replacement upgrade designed to fit your factory brake system and stock calipers. The unique slotted surface helps wipe away debris that can form between the pad and the disc, provides more initial pad bite, improves cooling, and will add a sporty track inspired aesthetic to any ride. All Power Slot rotors feature a friction surface coating to prevent glazing as well as a durable black e-coating on the center sections to prevent corrosion and enhance the look of aftermarket wheels. StopTech Power Slot rotors are manufactured to the highest tolerances of safety and quality. Designed using only the highest quality OEM replacement blanks, StopTech rotors are guaranteed to have a top shelf fit and finish. FITMENT: Mazdaspeed3 2007-2012*This is for one pair of rear rotors, both left and right!