Spark Plugs 86-91 RX-7

Laser Platinum® spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.

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

Includes:

2 x BUR7EQP (Leading)
2 x BUR9EQP (Trailing)

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

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.

Using 0.4 mm dia. iridium center electrode, IRIDIUM RACING displays superb ignitability and low required voltage, drawing out better performance from your car - increased acceleration, accelerator response, operational stability, and lower fuel consumption. On the circuit, the sharp acceleration and rapid accelerator response will help you win, while on city streets, it will realize a comfortable and long drive in addition to low fuel consumption.

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