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ST or RS Plugs?

jonj1611
jonj1611
in Ford Focus Club

Featured Replies

I am doing a service on my car shortly and I am going to change the plugs, I have read that some people prefer the RS plugs. Whats the general consensus on this? Best to stay with ST plugs or the RS ones?

Are oem plugs they way to go or any aftermarket ones better?

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    • Author

    No one?

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    • Author

    Ok thanks, will give them a go 🙂

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    • Like 1
    • 3 weeks later...
    • Author

    Would these be the ones :

    NGK 6481

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    • Author

    2007 pre-facelift

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    • Author

    Never heard of that brand before, any good?

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    • Author

    Never heard back from the seller so have been looking at these :

    https://www.gsparkplug.com/1x-denso-iridium-power-spark-plugs-ikh22-ikh22-267700-2650-2677002650-5345.html

    Does anyone know if they are any good? And I am really unsure about the heat rating, can someone tell me if these will be suitable for a standard ST225, definitely looking to go the iridium route.

    Thanks

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    • Author

    To throw one more in the pot, Bosch Iridium, am I right in thinking these are the RS plugs?

    These ones : https://www.ebay.co.uk/itm/173949766003?ul_noapp=true

     

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