This Map Adjust circuit should also be purchased if you have an AFR or broadband O2 sensor on your car. Some cars 2002 and newer and many cars newer than 2005 will need this component installed with the 3X optimizer to get the expected 50% or greater increase in mileage. If your car is newer than 2002 it's wise to get one of these. If your car is 2005 or newer you should definitely add this item to your shopping cart along with your HAFC kit, so that the mechanic who installs your kit will have it if needed. |
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