MSD 8670 RPM Module Selector<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>RPM module selector plugs into RPM module socket</li><li>Fits on all MSD soft touch rev controls</li><li>Used with MSD PN 6420/722/30 and many others</li><li>Select between 12 different RPM limits with simple turn dial selector</li><li>200 RPM increment changes</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41preDVNjBL.jpg" noproxy>