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NGK Iridium spark plugs
Price: $9.00

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Application - Heat Range:

Detailed Description

NGK Iridium Spark Plugs (price is for each plug)

90-05 MX5 Miata

  1.6 - 1.8 - 1.8 turbo - 1.8 Supercharged


We have found the NGK iridium to be the most consistent and  longest lasting spark plug. It's what we use in our street and race cars, including our endurance racers.

OEM heat range 6   
NA6 (90-93)
OEM heat range 5    NA8, NB1, NB2, NB2 Turbo (94-05)


Street and autocross use, normally aspirated - OEM heat range

Normally aspirated engines used for extended track use - Heat range 6

All forced induction engines  used for autocross, track or increased boost over OEM - Heat Range 7

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