SELECTING THE PROPER UNIVERSAL CONVERTER
(Non OBD-II Vehicles)

Engine Size

Determine engine size before selecting the converter. Converters are listed according to legal engine size. If engine has been changed and is not the same model year as the chassis, proceed as follows:

• If the engine is older than the chassis, select the converter according to the chassis model year.
• If the engine is newer than the chassis, select the converter according to the engine requirement.

Converter Type

Determine the type of converter being replaced. Check whether the converter is a 2-Way, 3-Way, or 3-Way + Air. See EFCI Click here

Vehicle Weight (Test Weight)

Determine the weight limit before selecting the converter. Converter coverage is listed according to Test Weight.

How To Calculate Vehicle Test Weight:

For passenger cars and light duty trucks less than 6000 lbs. GVW
Gross Vehicle Weight (GVW) Less Vehicle Capacity Plus 300 Lbs. = Vehicle Test Weight.

For trucks over 6000 pounds GVW
(Gross Vehicle Weight + Curb Weight) x 1/2 = Vehicle Test Weight

This information can be found on a tag inside vehicle door or in the vehicle owner’s manual (Use as estimate only).