OS Turbo Glühkerze P4
SUPER HOT
| P3 | Ultra Hot | OSMG2699 | For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines |
| P4 | Super Hot | OSMG2697 | For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines |
| P5 | Very Hot | OSMG2711 | For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines, especially when the temperature is high or for leaner needle settings and high-nitro/high-rpm running |