Just joined the site as I've been cruising the posts the past couple days. Was such a big fan I wanted to join! I'm thinking of pulling the trigger and purchasing a new (old) 03 CTS as a third vehicle here in Northern Indiana. It has 81k miles and a low asking price $4,700. Any advice, tips or tricks to the first generation CTS I should know about that maybe I haven't read already? What type of air intake system should I go with? Borla, Magnaflow or other exhaust system? Any advice I could receive would be much appreciated, thank you for this great site forum for the CTS!