hey i just got my new liberty back in june. im loving the fact i own a jeep. i have taken it offroading but nothing serous just some dirt trails. im not looking to taotally trick this thing out like i did with the neon i traded in on the libby. my main concern is boosting mileage. what mods can i do to improve the horrible mileage of these things. i saw a few intakes on ebay for like $15 but i read on here that the K&N system for $235 would be best. i have no problem with spending the money to get the results.i really dont wanna get a new exhaust system seeing they r pretty expensive and hard to find a decent enough shop around here to install it. what about chips? any available that would work with a stock or mildly modded(just an intake) engine? also how much of a loss of mileage am i looking at if i add a push bar or am i better off with a bull bar. i am also looking for a cheap set of running boards. something functional but not expensive. the only other things i want are splash gaurds and vent visors. i am also considering getting the tef-lon coating for the paint the dealership offered. anyone get this done. does it really work? what are the downsides of it? im also gonna get the extended warranty on bumper to bumper basic parts. im also considering a 3" lift kit. will this affect my stock suspension? what kind of shop can install this? is 3" too high or is there a kit thats not as high of a lift and will allow me to keep my stock suspension? will the lift kit void my warranty? thanks for the help! O