Which spark plugs for 330-350bhp Blob STI?
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Scooby Regular
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Joined: Feb 2006
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From: Leeds, West Yorkshire
I did search for this but it brought back pages and pages of irrelevant threads.
I'm sure I should go one grade colder but can't remember whether I should be going for iridium or platinum? And which make/model number etc.? Are NGK still the go to brand?
I'm sure I should go one grade colder but can't remember whether I should be going for iridium or platinum? And which make/model number etc.? Are NGK still the go to brand?






