NGK Laser Iridium Spark plugs are the latest OE spark plug design. They feature a laser welded 0.8mm iridium center electrode along wit laser welded platinum on the ground of the electrode providing the strongest ignitability and the longest life possible. 

These plugs are the same heat range as your OEM plugs

These plugs will work on Stock and mildly tuned cars.

What does Heat Range mean?

"Generally, low power engines such as lawn mowers don’t produce a large amount of heat, hence use a low heat range (or hot) spark plug such as a 4 heat range. This means the spark plug will heat up easily and reach its optimal operating temperature. High performance engines on the other hand produce a large amount of heat, hence a high heat range (or cold) spark plug such as a 10 heat range needs to be used to resist the heat developed by the engine." - NGK

Spark Plug Specs:

Gap Size: 0.024
Manufacturer Heat Range: 7
Center Electrode Core Material: Copper Core
Ground Electrode Core Material: Nickel Core
Ground Configuration: Standard
Ground Electrode Quantity: 1
Reach: 26.5mm
Resistance: 5K Ohm
Ground Electrode Tip Design: Taper Cut
Insulator Height: 50.5
Seat Type: Gasket
Center Electrode Tip Material: Iridium
Hex Size: 5/8in
Thread Diameter: 14