R33 GTS Skyline RB20E
Single Cam, Non Turbo
Set of 6 NGK Iridium Spark Plugs
1 Step Colder- Heat Rating '6'
NGK Iridium technology spark plugs utilise the latest in technology and also laser welding construction techniques. This enables a centre electrode size of just 0.6mm! The smaller the size of the electrode the less voltage is needed to jump the gap- this means more spark energy to ignite the mixture.
These plugs are heat rating 6 which is good for modified engines.
If you are in any doubt as to what plugs would be suitable for your car, please contact us.