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Re: Brisk Premium LGS Worth a Try
Volker Spec-II Racing seems to me from Bosch, has a long-life iridium centre tip with a 7-up earth electrode, just like most conventional plugs. The Denso Tough customised for Lexus might be its closet equiv.
Between silver and iridium - the performance difference might be quite clear.
Last edited by hilton : 14-02-2008 at 05:19 PM.
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