Yellow wires & black boots. With 90° plug boots and 180° (straight) coil boots, stainless terminals and 100% silicone boots. Cut to length required. Overall length 93cm. Supression core with a thick 8.8mm silicone jacket to eliminate electrical ‘leakage’ and RFI interference that interrupts electronics and electronic ignition modules. Note: For use with electronic ignition systems only, not compatible with points triggered ignition systems. Note: Will not fit coil connection on stock single fire models like all Twin Cam, M8 and 98-03 XL 1200S models.