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Fits: 1995 1/2 -'01 fuel injected big twins (except 2001 Softail®) equipped with S&S® Magneti Marelli® style VFI module (559-0001) Will not work with stock ECM (Engine Control Module). This kit when used with the S&S® Magneti Marelli® style VFI module (559-0001) makes tuning a breeze. The S&S® closed loop system modifies the base fuel map to meet the specific requirements of your engine.
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