O.S. Engines Speed P4 Gold Turbo Super Hot Glow Plug

OSMG2696 Speed P4 Gold Super Hot Plug

Generally, Hot plugs promote better idling and acceleration. If your engine runs rough or accelerates sluggishly, a hotter plug will help. Cold plugs produce more power and may improve performance if your engine runs hot. The downside is rougher idling and more difficulty in tuning.

• Speed P3 ideal for ultra-hot applications; Speed P4 ideal for super-hot applications