The Wilwood TX4R rear brake kit for 1999–2018 Chevrolet Silverado and GMC Sierra pairs a 16 x 1.25" slotted rotor with a four-piston caliper finished in red. Offered as a direct-fit rear kit for those model years, it delivers the cosmetic upgrade of red calipers alongside rotor slotting intended to improve pad cleaning and heat management compared with plain replacement rotors.
Wilwood 99-18 Chevy Silverado/GMC Sierra 16x1.25 Slotted Rotor TX4R 4 Piston Rear Brake Kit - Red