NGK iridium plugs represent the ultimate evolution of spark plug technology and performance. The iridium center electrode is both stronger and harder than platinum. This allows NGK engineers to design an ultra-fine (0.6mm)center electrode reducing the voltage requirement for spark. This allows for a brighter, stronger spark from your existing ignition system. The ground electrode has a tapered cut at the firing end which reduces quenching for better flame core growth and increased ignitability. The combination of fine wire center electrode and tapered cut ground will increase performance, improve acceleration, and fuel efficiency.
NOTE: Sold individually, used for boosted and performance applications.
Contact our Tech Support Line for further information at 928-855-6341.
Question: What do I gap spark plugs to?
Answer: 2000 and earlier model Toyota's will be gapped to 0.031". 2001 and later models will be gapped to 0.043".