Originally Posted by Moabrubi
My Jeep gets great gas mileage sitting in the garage while I drive the Tacoma.
Punch a hole in your man card, lol.
For the OP, I don't know the difference for the JK's, but other than getting lighter, lower, and properly geared for bigger tires there isn't much you can do for gas milage.
For HP, your budget is the limit.