You asked for it and now here they are. MSD, King Racing Products & BR Pro Mag have aligned themselves to ofter the highest quality Ignition systems on the market to you at a special price. Every True Black Magic Magneto is Blue Printed, which means extensive CNC Maching and hours of Calibration are put into every magneto before its shipped out the door. Special Proprietary Wiring including an External Ground Loom with Water Tight Connector as well as assembly procedures using our all New Billet Zero Tolerance Set-Up Fixtures make the Black Magic magneto the top of its class. The 1" shorter lower housing was designed to help air box clearance on raised cam motors.