Anything you get from a chip is in your mind. Jeeps are very hard to get anymore power of. What you got is what you get. Don't even get me going on Diesel engines in California.....my company bought 50, 2009 engines since the engine manufacturers cannot meet the new specs for a diesel engine in California. We are presently testing Fuel Cell technology. We have three units at a cost $1.2 million dollars each. Any NEW vehicle we purchase now comes with an engine built in 2009, after they run out....who knows.
So you still want more power go here Hemi Conversions, Parts, and Kits by JSS
and get yourself a Hemipower plant.