Re: 4.0 spark plugs?
I've run a few different plugs...splitfires, bosch plats, blah, blah, blah. Nothing ran smoother than the Champion truck plug on that motor. The others gave me erratic idle issues.
Tony-13 JKU Sahara
, Black. LED white fender lights and signals, retrofit Homelink GD opener, LED interior lighting, shorty antenna, weathertech liners, CF door handles, mirror covers, front grille, and gas filler. Rugged ridge phone mount and hood catches, dead pedal, ventshades, rampage windshield tie down and stops, solid stainless lugs, 20% front tint, sill guards, FMF spare delete kit, and your mom. ToDo list: LED tails, LED fogs and heads, and a bunch of other stuff.
15 Cherokee KL
Latitude Edition with cold weather package. Bone stock.
: 99 TJ Sport, 98 XJ Sport, 04 WJ Limited, 06 WK Laredo, 09 KK Liberty