2003 - 2004  4.6L & 5.4L Expedition
Allen Engine Development now has  a supercharger system for the 2003 - 2004 Expedition.

Dealer inquiries  welcome.

OEM Quality, Driveability and Dependability!
2003 Expedition supercharger systems come complete with a cast aluminum manifold, air to water intercooler, Bosch electric water pump, Eaton M90 S-ported supercharger, integral bypass valve, Computer Re-Flash, and all brackets, belts, hoses and hardware for an OEM quality installation. 

50 State Legal !
C.A.R.B.  E.O.# D-423-4
75 HP increase!

530 ft-lbs Torque @ 1800 RPM (5.4L)

Full  6 psi boost at 2000 RPM!

Stock Driveability!
Note: Computer Re-Programming required for this kit.  The EEC must be sent to AED for Re-Programming.
Please allow  5-7 days for this process.
All Allen Intercooled Supercharger systems use the Eaton M90 S-ported supercharger.  Eaton is the supercharger of choice for virtually all OEM's, including: Ford, Buick, Oldsmobile, Toyota TRD, Nissan, Aston Martin, BMW, Mercedes and Jaguar.  Super quiet and super dependable, with a one year warranty.
(Optional 3 year warranty available. )

Allen Engine Development
2521 Palma Drive

(back bldg)
Ventura, CA 93003


Ph: 805-658-8262

Fx: 805-658-8645

To order our new Supercharger Catalog,
Click HERE

Place an order for a
Supercharger System
or a Chip on our Secure Server HERE

View the on-line Installation Instructions HERE

Installation Instructions Updated 11/21/04
We now have the installation file for this Expedition as an Adobe Acrobat file.
To view or download / save the file to your computer you need the Acrobat Reader,
which you can get for FREE Here

To view on-line left click the file name

To download and save on your machine RIGHT click and 'save target as'
(Internet Explorer)

or 'save link target as' (Netscape)

03 Expedition Install - Acrobat

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