Reliable spark plug with improved head dissipation, standard U-groove and heat-resistant nickel jacket.
Electrical & Ignition

Active filters
Covers the factory ignition switch for a clean look. Works with Arlen Ness® Method® Top Tree and Triple Tree kits. Retains factory ignition switch location and fork lock function.
Delivers full battery voltage to single-fire coil during cranking. Sealed 30 A unit with high-temp housing. Compact 1.5" x 1" x 1" with mounting flange.
Fine-wire iridium construction for reliable starts and long service life; tapered ground electrode with U-groove improves combustion efficiency.
Quick-fit billet knob cover installs over stock switch knob using double-sided adhesive for a clean, custom look.
Quick-fit ignition switch cover with easy adhesive installation and billet-matching design.
Round horn cover accepts any five-hole points cover (sold separately).
High-performance 110 dB billet horn with stainless steel mesh; plugs into factory wiring and mounts in stock location.
High-performance 110 dB horn with stainless steel mesh screen and included billet bracket for stock-location mounting. Plugs into factory wiring.