Pro Mag 12 Amp Generator Lite, Short MSD IgnitionDesigned with Sprint cars in mind, the Pro Mag 12LT is almost 30% lighter than the Original Pro Mag, but still produces the same incredible power. The compact housing sits an inch lower for improved clearance of the fuel injection, and it features a band clamp mount for easier timing adjustments. MSD has also designed a cap and rotor specifically for the 12LT series. The cap is injection molded from DuPont Rynite material, which possesses high