SPARK PLUG DENSO PERFORMANCE IRIDIUM RACING 14mm THREAD - LEADING PLUG
- 100% platinum 0.8mm ground electrode reduces wear under severe driving or race conditions
- Ultra-fine 0.4mm diameter iridium alloy center electrode reduces voltage requirements, greatly improving ignition performance
- Special hardened insulator is 20% stronger for hard core racing applications
- Patented self-cleaning electrode design
- Silicone oil coated insulator to repel moisture and carbon buildup
- Handles extreme compression and boost levels
- Machine rolled threads prevent seizing or cross threading during installation and removal
- 100% pre-fired to assure the highest quality possible
- Purified alumina powder insulator provides exceptional strength and thermal conductivity
- Five rib insulator prevents flashover
- Copper-glass seal bonds center electrode and insulator for a gas-tight seal
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