Seller notes

Range Fuel Economy Module (AFM) Plus works with your factory installed AFM allowing your vehicle to drive in V4 (4-cylinder) mode up to 80% of the time.; Save fuel by allowing your engine to stay in the 4-cylinder mode up to 80% of the time. Active Fuel Management, available on most GM trucks and SUVs, helps lower fuel costs by enabling V8 engines to behave like four-cylinder engines when cruising with light loads, to save fuel.; Menu About Us Feedback View All Listings Warranty Shipping Range T...

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