:gr_patrio Im pretty new to this. I haven't even picked my truck up yet, but have ordered it. 2006 2500 CTD Mega CAB 4X4 6-speed. Anyway, im looking to get an Edge EZ among other upgrades for it but i'm wondering if that will void my factory warranty. Even if i were to take it out before taking it in...would the dealer be able to tell i had one. Also, any recommendations on an exhaust and air intake. I'm looking really for better gas mileage over power. Any help would be appreciated.