I just took delivery on a 2001 Expy EB. I had to order the High Altitude option to get a 3.73 rear end (wanted a little more towing power). I tried unsuccesfully to find out from Ford what else the High Altitude option modifies on the 5.4L engine. Does anyone know ?

2001 Eddie Bauer - Black
3.73 Rear End
Load Leveling
EGR Front Bug Shield
EGR Rear Wind Deflector
Husky Rear Mud Flaps
Ventguards

Planning to add Airaid, Superchip and possibly Gibson Cat-back.

[This message has been edited by L-Squared (edited 03-26-2001).]

 

I'm pretty sure the high altitude option does not entail any equipment other than internal mapping of the processor to allow for the generally lower octane fuel available in high altitude areas. It is doubtful that one would notice any difference in performance between a high altitude vehicle and a federal vehicle..other than the inherent loss of power (3%per 1000 ft of altitude) that normally occurs.