SWORKz have addd the ST3 and ST7 Turbo glow plugs to their SPower range. Made by O.S. Engines in Japan, the ST3 “Ultra Hot” Turbo glow plug is for off-road engines while the ST7 “Medium Heat” Turbo glow plug is for on-road engines.
The ST3 glow plug promote better idling and acceleration. If your engine runs rough or accelerates sluggishly, a hotter plug will help. The ST7 glow plug is ideal for .12-.21 engines that create high RPM and require a cold heat range turbo style glow plug.