I'm looking at an aftermarket intake air filter system to (a) make room for a dual diaphragm brake booster and (b) clean up the look of the driver's side of the engine bay. I've seen photos of several members' MJs with Airaid and K&N intake systems and am thinking of going in that direction. But I haven't found a listing by either Airaid or K&N on a specific system for an 88 MJ 4.0 L Renix application.
If you have either of these systems on your MJ, could you post the part numbers you purchased and tell me about any modifications needed? Did you box it in and enlarge the opening through the radiator support for better cold air intake? Or, just hang it out there in the open and let pull air wherever?
Also, is there provision for the fresh air supply to the valve cover and a vacuum connection as on the stock airbox?