Re: 4 liter intake manifold
Supposedly There is not one but supposedly edlebrock makes one. You already have the the best stock unit though, most people with a 98 or older 4.0 would love to have the intkae you have because it flows better and its supposedly a dynoed 15 hp gain over the 98 and older intake.
-Kyle '05 Dark Khaki (PJT) WK Limited 4.7L V8, '08 Overland Front End, Custom Exhaust, 245/70/17 GY Silent Armors, Bilstein 4600s, K40 Calibre DL Radar Detector/Laser Diffuser, CB.
Wife's Jeep: '06 Jeep Liberty KJ 4x4 2.8L CRD Diesel