What are you guys using for 2 step ( launch control ) ?
 

Thinking of adding on a 2 step feature to my Fd but I would like to keep my twin power ign. I heard there was a box that just controlled launch. I can't remember the name of the company that makes it. Maybe gizmo ?

There are multiple boxes that just control launch. MSD is the most common, first one that comes to mind https://www.google.com/search?q=msd+...h=601#imgdii=_

I have looked at the msd but I'm not looking to change my current ignition so I was seeing if anyone is running just a separate 2 step feature

Also everyone running this on all 4 plugs?

Crane HI6-dsr with dual stage 2 step rev limiter built in, just on the leading plugs, a relay cuts the power to the trailing coils when the 2 step is activated when the clutch is pushed in.