The best way to get your mileage back is to do it all in one shot. Even when the Diablo is installed in the truck with the VXCF9H7 strategy, the ECM is still operating with a crappy base strategy.
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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