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Old 03-08-2012, 08:55 AM   #21 (permalink)
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Celica VVTI - '05 Toyota Celica GT VVTI
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Has anyone actually tried these, or found an independent review?

They sound good in theory, but I can't tell from the marketing BS whether they are better for FE than the pointy ended iridium plugs. The iridiums are generally only pointy at one end though, the electrode end, and not at the ground end. Whereas these are slightly pointy at BOTH ends, incorporating an electrode onto the ground. Thus not interfering with the spark and flame front quite so much. Apparently... It does seem feasible.

I am slightly concerned that the ground electrode, being a separate "chip", could come loose with time and wear, and wreck an engine.

Does anyone have any experience with these?

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