You want to improve aerodynamics on an XJ, do as others have suggested, work on minimizing wake or promoting a clean break.
Prevent or minimize airflow into wheel wells, provide high pressure air evacuation.
Decrease the sharp transition from hood to wind sheild.
More aerodynamic side view mirrors.
More aerodynamic fender flares.
Provide through the hood air evacuation for radiators.
Smooth underbody if you keep current ride height OR lower body and install airdam as low to ground as possible to prevent air from going under Jeep.
Low drag wheels or wheel covers. Ford wheels are of the same bolt pattern and often same back spacing.
Last edited by XJguy; 04-20-2011 at 04:37 PM..
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