Bujia Thunderbolt R/C

•Made in the USA •The only plugs you can buy with exotic platinum-rhodium alloy coils. •Thunderbolt elements glow hotter, start engines faster •Best idle performance of any brand of glow plug •Best transition to full throttle •Best plug life of any brand •Coils are welded to the plug body fro greatest dependability •Coils are triple checked for continuity and integrity •Solid machined idle bars are welded on and will not come off •Space age insulator ring surrounds center electrode further sealing against leaks •Copper compression washer seals against any possible leaks past the precision-cut threads •Electroless nickel plating or black anodized finish on plug exterior prevent rust, giving long lasting luster