with Quadra Trac? I have had my 1995 ZJ since september 2009 love it but i have to admit it is not good on gas it is rated at 12 city and 17 highway i think the name of the Transfer Case is th ''NP249''???? I thought Long or Short Tube Headers not only for a Wicked Sound but for more power and Fuel Savings as well by the way which would be more Loud and Power Producing Long Tube or Short Tube Headers???? I have a Flowmaster Super 40 Muffler on it already Sounds Great but with Headers even Better I was also thinking a 180' Degree Thermostat,The Best Spark Plugs???? what else????