Description This is the ProTek R/C Gold O.S. P3 “Ultra Hot” Turbo Glow Plug, the exclusive plug of the Samurai 321B Nitro Engine. The ProTek R/C P3 plug is designed for use in most .18 – .28 off-road turbo head engines such as O.S., RB, Novarossi, Werks and Orion. This P3 variety provides ultra hot operation for optimal idling and acceleration. Package includes one plug. Features: Easier to tune More low-to-middle range power Quicker throttle response Faster acceleration Better mileage Crisper idling Increased longevity
