Ofna glow plug is for use with fuel containing 10-20% nitromethane. It is constructed of metal. This package includes five glow plugs (carded and placed in header/bag). This glow plug is different from the conventional glow plug. It is made to fit the Inner Head of "Turbo" type cylinder heads. It has a slight taper on the bottom allowing it to sit flush with the combustion chamber.

For use with "Turbo" style cylinder heads
For installation and removal, use an 8mm nut driver