I just came from a fairly long trip, 3.3k miles, Southern California, Oregon, Nevada, Southern California. Mixed on/off road, but mostly on. It was often over 100 deg temp. I noticed that the only things that didn't pass me up hills were Winibagos and 18 wheelers. Even the little Honda Elements were buzzing by me. I read about boosting the power via cold air intakes and different exhausts, but don't know what to believe. Could you guys advice me, preferrably through real experience? I would be most appreciative. Right now I am ready to sell....