Description
| Model | Heat Range | Description |
| P5 | Very Hot | For 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 |
| P4 | Super Hot | For V-Spec and most .18-.28 off-road racing Turbo head engines |
| P3 | Ultra Hot | For V-Spec and most .18-.28 off-road racing Turbo head engines |
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