Item Description: Front Vented Disc Brake Rotors 2PCS Set For Cadillac STS 05-08, CTS 06-07; 322mm Contents: 1X Front Left Disc Brake Rotor (Vented; 322mm/12.71in) 1X Front Right Disc Brake Rotor (Vented; 322mm/12.71in) Interchange: (S-55105) 121.62084 580264 25750248 Placement: S-55105 - Front Left Disc Brake Rotor (Vented; 322mm/12.71in) S-55105 - Front Right Disc Brake Rotor (Vented; 322mm/12.71in) Compatibility: Cadillac STS 2005-2008 with JE5 performance brakes. Cadillac CTS 2006-2007 with FE5 performance & suspension package. Pontiac Bonneville 2004-2005, GXP. Warranty: 1 (ONE) year.