Spark Plugs 04+ RX-8

Set of Factory NGK Laser Iridium Spark Plugs

Laser Iridium® spark plugs provide superior ignitability and long service life.  Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions

• Laser welded Iridium center electrode tip
• Platinum disc welded to backside of ground electrode provides long life
• Trivalent Metal Plating for superior anti-corrosion and anti-seizing
• Faster starts and quicker acceleration
• Better fuel economy and lower emissions
• Best OEM Iridium spark plug available
• Original Equipment Manufacturer approved design

Includes:

2 x RE7C-L (Leading)
2 x RE9B-T (Trailing)   

You can also purchase a set of four of the same heat range.

Racing engines, for the most part, are above 7000rpm 100% of the time - these are the ones that require the colder plugs. Quite often a set of "hotter" plugs must be used to get the engine started and warmed-up, because the race plugs will not fire consistently below 4000rpm.

To withstand the severe conditions that occur in racing engines, NGK Racing Spark Plugs feature electrode materials and configurations as follows:

• Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements.
• Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug.
• Insulator configurations - Special configurations are used for the insulator noses to improve throttle response.

The NGK Race Plugs are priced individually, however each heat range is sold in a box of 4.   This will be calculated in the Shopping Cart.