The Pro 16 is M&W's 6 channel ignition amplifier. This is generally used in 6 cylinder applications for a direct fire 4 coil system, or for 12 cylinder engines to run in wasted spark mode. The Pro 16 is one of the finest quality ignition amplifiers you can buy. The Pro 16 includes the ignition box and a mating connector. A custom wire harness must be made, we offer custom harnesses if needed, please call for more info on them.