I can't figure out which one I should get. I need some help. I was thinking the 150 but didn t know if it would be an overkill? This is probably going to be my last mod for a while since my pocket book is starting to run low :doh:. Can anybody give me some pointers on which to get? I'm thinking right now that I probably wont get bigger sticks or turbo later since I dont pull anything. Is this a good upgrade just for a daily driver wanting better mileage/more efficent truck?