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H&S High Sulfur Unlock Code

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Product Information

Most diesel trucks manufactured within (or being assembled for) the United States are equipped with a very strict emissions management system. These complex emissions systems require the use of Ultra Low Sulfur Diesel (ULSD) fuel. The use of high sulfur diesel fuel or any fuel other than ULSD will cause performance problems and even an inoperable vehicle. The High Sulfur Calibration software designed by H&S Performance enables the end user to utilize a much wider variety of diesel fuel solutions. No longer are your options restricted when purchasing a new diesel truck for export, racing, or emergency services. Get your H&S unlock code today!


Note: Once this high sulfur unlock is purchased, it CANNOT be returned.