Bosch Ignition Control Unit

As used on our B46 race cars for ignition control. 

The Bosch Ignition Control Unit utilizes the engine's computer and sensors to deliver current to the spark plugs, allowing for proper ignition in the engine cylinders. A common indication of a malfunctioning unit is the inability to start the engine due to a lack of spark, rather than a lack of fuel or air.

Cross ref 4D0905351