AC Delco Bolt --. AC DELCO BOLT. 2014 CTS Premium Coupe, AWD, Ecu To Hcu Attach. 2014 CTS Premium Coupe, RWD, Ecu To Hcu Attach. 2014 CTS V Coupe, RWD, Ecu To Hcu Attach. The factory-original fit and lasting function of ACDelco’s Bolt provides the perfect repair without breaking your budget.
