I'll let you know in a few months. I ordered one for my new Rubi Unlimited. Neither the Jeep or the TB is here yet. I'll probably put about 1,500 miles on the Jeep before I swap throttle bodies....that way I'll have a pretty good idea of differences in fuel economy and throttle response, as well as a pretty good calibration of the 'ole butt dyno. If I can find a shop over here with a dyno and an interpreter I may go ahead and run a before and after comparison. The only thing I didn't like about the Jeep I test drove was the throttle response so if this improves it I think its $130.00 well spent.