HKS super Fire Racing Spark Plug (Set of 6) for Infiniti G37 & Nissan 370Z
HEAT RANGE 10

HKS S-Series Super Fire Racing Spark Plugs are high performance Iridium plugs designed to handle advanced levels of tuning and still offer easy start-up and smooth idling.
Two Step Colder Option is designed for those who have at least 200 HP over stock

* 0.4mm diameter Iridium plug electrode core
* U-shaped grooved electrode
* S-Series Super Fire Spark Plugs are recommended for smooth cold starting, response and acceleration.

FITS:
2008-2013 Infiniti G37
2009-2015 Nissan 370Z
2007-2008 Infiniti G35 Sedan
2007-2009 Nissan 350z

Quantity: 6
Plug Type: Iridium
Engine: VQ37HR - 6 cylinders