Why NGK Iridium?Increased Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, and a new metal shell plating process for better anti-corrosion. The Mazda RX8 is known to have start up and idle issues if you don't run the car hard often. NGK Laser Iridium plugs are a great replacement for the stock plugs. They feature a slow wear rate providing a stable idle w/ superior anti fouling. Improved fuel efficiency is also noticed. # NOTES: The Mazda RX8 uses 2 leading plugs, and 2 trailing plugs. # OEM heat range for quick starts and long life # NGK Iridium Plugs come pre-gapped - adjusting the gap can break the fragle Iridium tip
Price is for Trailing Spark Plugs.