It may be harder to import a vehicle that has been modify in regards to the emissions. I have been looking into this as soon I will be selling my '03.
I have been advised to take the vehicle to the closest Ford dealer where they will inspect the vehicle, then notify head office who will then issue the letter.
This is from the EPA website;
2.1.2.1 Canadian Vehicles Identical to U.S. Version Vehicles
If the Canadian vehicle is identical, in all material respects to a U.S. version vehicle as
identified in the OEM's EPA certification application, it may be imported by anyone. No
Customs bond or approval is required by EPA in these cases, but the imported vehicle must meet
one of the following two conditions.
1. For 2002 and newer model year vehicles, the importer must provide a letter from the U.S.
representative of the manufacturer stating that the vehicle met all U.S. emission
requirements when it was manufactured, except possibly for labeling or warranty.
2. For 1988 to 2001 model year vehicles, the vehicle must be on the EPA list of Canadian
models identical to U.S. version vehicles (the EPA list is located on EPA's Imports
Website and includes all 1988 to 2001 model year Canadian cars and light-duty trucks
(pick-ups and vans under 8,500 GVWR))
http://www.epa.gov/otaq/imports/canadian.htm.
Requirements:
●
Importer for personal use must file with U.S. Customs, upon entry, an EPA Form 3520-1
declaring code "EE" and if condition (2) above is applicable, attach the letter from the
OEM's U.S. representative.
●
Importer for resale must file with U.S. Customs, upon entry, an EPA Form 3520-1
declaring code "FF" and if condition (2) above is applicable, attach the letter from the
OEM's U.S. representative.
Section 2:
I hope that this helps.