I usually get around 20-21 cruising. Never really ever took it far on the highway to get those kinda numbers. And when I'm cruising I barley rev it.Hey I just installed my TK CAI a couple nights ago and for SOME reason I get ridiculously good numbers for the highway but i get down to 20s just cruising in 45mph zones, im thinking its because of the cold, if so then Ill probably go to an SRI setup for the winter... I dont rev either lol