HKS plugs

[Anonymous]

What plug gap should i set my new HKS iridium plugs to? The number is S40i. Will i just put them as they are? The car is running standard boost. Ta

 

[AJ4]

Set them to 0.8 for standard boost, you can fiddle them a bit depending on what heat range they are, but 0.8 should be fine for a start.

 

[Anonymous]

Thanks, i will try that tonight.