Wasted spark coil for 4-cylinder engine

Wasted Spark coil for 4-cylinder engines or with two of these for 8-cylinder engines.  

We have two variations from same coil: Either connector 45deg or straight up. No other difference.

Easy and cheap way to get rid of distributor.  Wasted spark coil ignites in two cylinder at once, for example in 4-cylinder engines cylinders 1 + 4.  As another cylinder is empty, fuel is ignited only in one cylinder at the time.  That's why wasted spark system doesn't need cam signal at all.  

Doesn't include ignition driver, so buy separate driver or Expansion board with drivers.  2 driver channels needed.