BRAKES

 STOP NOW!  The Brembo brakes on the 2009+ Cadillac CTS V are massive from the factory.  Later they changed over to the 2 piece rotors which weren't any lighter, but were supposed to perform better on the track due to cooling vanes in the rotor.  The factory pads are notoriously unforgiving with the dust they coat your wheels with and tend to get "gummy" under track sessions or aggressive street driving.  You can easily upgrade these to Hawk Ceramic pads with fractions of the dust created.  Add stainless steel lines for better pedal response and DOT4 fluid too.  Also, our 2 piece light weight performance brake rotors save 2lbs up front each and 6lbs in the rear plus add a slotted look behind those nice wheels of yours!