throttle body spacer

Alright Jeep Family - I've got a head-scratcher going on over here. Not sure if it is a possible vacuum leak or something else. Could use your collective input. Possible Information Needed: 2003 TJ Sport, 4.0L, Automatic, 121k mi Banks Cold Air Intake Throttle body spacer Standard OEM Throttle...

There are some products out there that claim to be able to improve on the already significant engineering that has gone into your motor. The 4.0 engine in the Jeep Wrangler TJ is well known to be a hard engine to get power out of in terms of "bolt-on" modifications. You don't stand to gain any...