os speed r2104
OS SPEED edition of the P3 plug with 24k Gold coating. Developed as part of the 80th anniversary celebrations for OS
- 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;
The OS P3 Plug is well suited to a wide vareity of engines, specifically those OS based .21s such as V Spec and Later VZ-B and XZ-B as well as B2101 and B2102.
O.S. 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! They’re the perfect complement for .18-.28 cu. in. turbo head off-road racing engines. Even more important, Speed P3 and P4 plugs boast many performance upgrades like being easier to tune, more low-mid range power, faster acceleration and more.