NGK Plugs

Just wondering who is using these plugs in a stock Integra VTiR (GSR)? Are they safe?

There seems to be mixed things on forums in regards to using 6 or 7(colder) plug.

Would these also be safe to use in an AUDM spec DC2ITR (11:0 cr)? Is a '5' plug too hot for an ITR it would cause damage?

Thanks

 

If this is not a turbo/nitros/supercharger application then you shouldnt be running a heat range of 7 on your plugs. Stock plugs are cheap why bother trying something else?

 

Just needed more info if 7 was too cold for a stock NA application. BKR7e-11 were promo plugs, i got them for nothing which is why i asked.

 

Can anyone answer my 2nd and 3rd question

 

Best thing to do is test them. You will know if it runs too cold by looking at the plugs. In an ITR run the 7 heat range, for a GSR optimal would most likely be a 6 though.