2x - Front Drilled & Slotted Disc Brake Rotors: S-31243. 2x - Rear Drilled & Slotted Disc Brake Rotors: S-31244. ACURA CL 1998 - 1999 4 Cylinder Only. Complete Front & Rear Drilled Disc Brake Rotors. Our Products are manufactured in ISO 9000 / 9001 / 9002 certified facilities.