Aerospace Components 4 Piston Heavy Duty Front Drag Race Brake Kits are constructed out of the finest materials and are machined to the strictest standards. Billet aluminum calipers, hats, and brackets keep weight and E.T.'s low! Each kit is supplied with brake calipers, rotors, pads, and the necessary hardware for installation. As you upgrade your car to go faster, you need to upgrade your brakes to stop faster, too. That's where Aerospace comes in with these 4 Piston Heavy Duty Front Drag Race Brake Kits. Made in the U.S.A.