4.0l performance ideas
I have a 04 jeep grand Cherokee with the 6cl 4.0l and I was wondering what good performance parts there are out there for it. I have a exhaust already that's a magnaflow and I'm looking at getting a K and N air filter. I also was looking at a throttle body spacer as well. I'm just wondering if there is anything else's out there to do to get better fuel economy. I was looking at the jet stage one and two computer chips but really don't know much about them, and also the bully dog performance meter that looks like a tuner for a jeep. please help me out I'm getting 14.5 miles per gallon now and would like to get better around town.