So whats so different about these plugs to warrent such price between them. after all isn't it that different plugs run at different tempretures.
i'm thinking another stich up by the motorcycle manufactures with these plug companys.
its most likely that the bikes plugs are slightly differant and they're batch produced instead of mass produced as theres not as bigger market for them, if that makes sence
in the old days there were a very small amount of different part numbers all of which had copper cores and required changing every six thousand miles and they were mass produces in there millions. Now plugs have platinum and iridium electrodes and last for 20 thousand miles plus the main reason for the very high price is the fact they fit a bike. The most expensive price for a top end car plug is about £6.00 + vat
blimey. each:-o u should just keep using them till they run out mate. get ur pennies worth
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