OSM71642720 OS Engines Speed P3 Gold Ultra Hot Glow Plug suit .21 Off Road Engines

The O.S. P3 Gold "Ultra Hot" Turbo Glow Plug glow plugs have always been tough enough to take the heat and Speed P3 and P4 Gold Turbo Plugs with 24K gold plating take O.S. innovation to new levels! Theyre the perfect complement for .18-.28 cu. in. turbo head off-road racing engines. The gleaming gold appearance makes these plugs really stand out, while commemorating O.S.s 80th anniversary. Even more important, Speed P3 and P4 plugs boast many performance upgrades.

Features:

• Easier to tune
• More low-to-middle range power
• Quicker throttle response
• Faster acceleration
• Better mileage
• Crisper idling, with a difference you can hear
• Increased longevity
• Speed P3 ideal for ultra-hot applications; Speed P4 ideal for super-hot applications