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MSD Plug-in RPM Modules for Part #'s 1345 & 1321
These plug-in RPM modules are used to set the rev limiter on the MSD 6AL Ignition System with Rev Limiter (Part No. 1321) and the MSD Soft Touch Rev Control (Part No. 1245). Each kit spans 800 RPM and includes five modules in 200 RPM increments.