i have a 98 dodge ram w/ the 5.2 magnum and was looking to get something to boost performance and gas mileage. i currently have a k/n air filter with flo-master exhaust. also have an msd ignition. it is also currently lifted 3 inches with 32 x 11.5 x 15 bfg all-terrains. i was thinking of getting a programmer for the computer or a performance chip but they are kind of expensive, like $300 to $500. Is this the best route to get a little more performance or is there something better thats less costly?