This is a REDS Racing TS3 "Ultra Hot" Turbo Special Off-Road Glow Plug. This special glow plug makes the engine tuning easier, improves idling stability and gives a cleaner bottom end throttle response. The plug is produced with the highest quality standards and with the best materials to ensure the best reliability and stability.
Reds Plugs are rated as:
Hottest
TS3
T5C
TS4
Coldest