Wow, busy forum over the holiday weekend. The B58 coils use a resistor inline to increase voltage higher to jump insanely large gaps that would be counter productive to making power. Think 100,000 mile old plugs. As for kits shipping out we just began our next shipment of 15 kits if yours was one of them you would have gotten an email. As for the N55 kit we found some local testers who are running them through their paces.