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XFT supply the latest XCal III units, which are backwards-compatible with older XCal I and XCal II units, as part of a performance upgrade. In addition to the pre-configured, optimised XFT custom tunes the XCal III unit is capable of being configured to allow the customer to both log performance and make small changes to the tune. The XCal III unit holds a total of 4 tunes, including the original tune if the original configuration is required at any stage. All Xtreme Ford Tuning tunes are specific to your individual car - not just a generic tune. They come with a no-questions-asked money-back guarantee if you are not completely satisfied with the results, and can be upgraded later, preserving your investment.
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