I went with the full meal deal, Nology coils, Nology wires and NGK Iridium plugs.

Love them. I have never had my bike on a dyno, so I don't have any real numbers to pass along however...
The bike starts up quicker. Don't have to choke it as long as I use to. The butt dyno says that there is more power and better throttle response. Plus, my gas mileage has gone up.

Soren