Car Tuning Chelmsford City Centre, Chelmsford - Welcome to the Chelmsford City Centre Car Tuning Directory listing recommended car tuning companies in Chelmsford City Centre. It lists those who offer engine diagnostics and car tuning in Chelmsford City Centre, Chelmsford. Do you have a Chelmsford City Centre business? If so, why not advertise it on the Chelmsford City Centre Business Directory - IT'S FREE.