A New generation of Ignition Coil is here.  

With constant research and development, we were be able to build the 
Multi-spark system directly into the ignition coil without using an external discharge box.  Our Multi-spark technology creates a secondary voltage and produces a 46% increase in secondary current.  Powerful double sparks are generated in 1/1000 of a second at low-mid RPM and switches to a powerful single spark at high RPM.  As with all products from Ignition Projects, 
Multi-spark ignition coils are direct plug and play with the stock wiring harness.  No cutting or splicing involved.