I've got the Airaid CAI, but the one I got only replaces the filter. Just installed an MBRP catback and it sounds real good. The biggest gain was from the tune. I went with Stage3motorsports as they seemed like one of the only places I could find any real interest in the gas F250's. Their tuning is done by 5star and so far so good. Truck has truly awakened. PM me your phone number and I'll take a vid for you.