Ultimate Racing offers this japanese made turbo Glowplugs, fits any OS based engine as well Picco and Reds, as usual has great quality control. I truly recommend it for all around and easy tune up of the engine, there is a trick however, that P3 or superhot glow plugs wears faster than a P4 or P5 ones, so keep it in mind and change it for a new one on a long main. If you use it for practicing or bashing will last for a half of gallon with conservative tuning of the engine.
