O.S. Engines 71605200

FEATURES:

• Designed for high nitro fuels. (25% +)
• Increased durability at high RPM.
• Durability under extreme temperatures.
• Allows for leaner needle settings for higher power and quicker throttle response.
• This plug is most suited for 1/8 scale, .21 Nitro-powered on-road racing.

INCLUDES: #R5 glow plug with gasket