Own a 2003 GMC Sierra. Current upgrads performed on my truck: installed heated, power fold mirrors w/ intergrated LED turn signals; installed MasterFlow catback system w/ duals to the passenger side w/ stainless steel tips; K/N airflow system; Hypertech Power Programmer; Line-X bedliner w/ Undercover bed cover; currently in the market for the new 20" GMC wheels. This is an all purpose truck as in every day use along responding to fire/rescue calls. Has LED emergency lighting, hideaway strobes and Gall's remote mount siren system.