Hey guys, im looking to get some good power out of this legendary 4.0 motor, but nothing involving removing the motor haha ive got the typical K&N cold air and i got the Flowmaster but of course looking for more. Ive looked into the throttle body spacer and Superchip power programmer. What do you guys think?
Unfortunately, this is already my second WJ and i down graded to the 4.0
i had the 4.7 so now just trying to relearn the tricks of the 4.0