Description

- Motorsport spark plug with robust design.
- Nickel-yttrium with stamped earth electrode
- Bosch heat range 05
- M14x1.25, 19mm thread length
- Suits ~850-950bhp 8-cyl (Methanol)
- Suits ~500-550bhp 20b Rotary Engine

Bosch Heat range: HOT 10-9-8-7-6-5-4-3-2-09-08-07-06-05 COLD