Seymour Duncan 11108-21B SH6N And B Mayhem Humbucker Pickup Set - Black Overview : The original high-output humbucker The SH6N and Mayhem Humbuckers are perfectly designed for the heaviest punk, metal, and hardcore guitar tones. The Seymour Duncan SH-6 Distortion Mayhem Set includes a pair of SH-6 Duncan Distortion humbucker pickups for the neck and bridge positions of your electric guitar.