Originally Posted By: artificialist
I have heard that with some Jeep 4.0L engines, you can swap multi-hole injectors from a different vehicle and get a performance gain because of improved atomization. I'm not sure about what car has the multi-hole injector that fits.
I know my Jeep 4.0 runs a load better with the multi's than the original style injectors.
Fuel economy is where I have seen the most gains.