P4 OS P4 Super Hot Glow Plug

O.S. P4 Turbo Super Hot Off-road Glow Plug (OSMG2697)

Designed for .21VZ-B & 21XZ-B V-Spec and Speed Tuned Engines

For use with 25-40% Nitro Fuel.

Increases RPM's and Fuel Mileage.

Also fits Bullitt B-218, Arrow-Racing GTR-21, and most .19-.28 engine brands.

Made in Japan