This special tool is designed to make the necessary headpipe modifications for installation of the Screamin’ Eagle
® Smart Tune PRO Automatic Tuning Module’s wide band oxygen sensors.
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Simply remove headpipe and use custom ground drill and tap to convert the oxygen sensor threads from M12 to M18
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No welding is required
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Threaded adapaters to allow the re-installation of the factory M12 oxygen sensors are sold separately