and testing behind it. It is, supposedly, a simple upgrade from the stock coilpacks. It is meant to present a more linear line of voltage to the spark plugs. The people usually showing most gains, and note that there are only a handful, have been those people with high hp engines. Can't say that I've heard of anyone installing them on, say stage III's or NA's, at this time.
It is a very expensive item to boot. Close to $500 new. I am sure there is a better way to spend $500 at this point in your build.
