For sale New never used in Open package SE Race Ignition Module 04 up Dyna part # 31788-04 This module provides the required ignition timing for high-performance engine modifications, including performance cams, raised compression, and added displacement. The module retards ignition timing by 10 degrees at wide-open throttle. For race application only. 6200 RPM Limit 31788-04 Fits ’04 Dyna models. 50.00 Shipped in lower 48 Contact bayourk@aol.com