CADILLAC CTS 2014 Performance, Premium Model w/HD (J55) Brake; 3.6L Coupe / Wagon. CADILLAC CTS 2014 Luxury 3.0L; Models w/HD (J55) Brakes. CADILLAC CTS 2008 Base; GM Brake Code J55. CADILLAC CTS 2009 3.6L; Base, Luxury, Premium.