Description
Your ignition system’s reliability and efficiency depend on spark plug quality—and the NGK Iridium BPR8EIX 6684 sets the industry standard. With an ultra-fine iridium electrode that fires consistently across your engine’s RPM range, you’ll experience improved fuel efficiency, stronger cold starts, and extended plug life. This is the choice professional racers and precision-focused mechanics trust when performance margins matter.
- Iridium electrode construction
- 25% smaller than platinum
- Reduced voltage requirement
- Extended ignition system life
- Enhanced anti-corrosion plating
- Superior firing consistency
- OEM-equivalent reliability
- MPN: 6684
- Direct bolt-on fitment
- Professional-grade performance





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