This is my MSD 8737 3 Step Module Selector with Three Built-In Rev Limiters is a high-performance auto performance part designed for ignitions systems. Manufactured by MSD Ignition, this chip-style module selector allows for precise control over ignition timing and rev limits, making it an essential component for automotive racing and performance tuning. Shipping to the lower 48US only. If you have any questions just ask. Please look at all the pictures they are part of the description.
