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Old 03-09-2012, 05:44 AM   #22 (permalink)
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Join Date: Jun 2011
Location: England
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Celica VVTI - '05 Toyota Celica GT VVTI
Team Toyota
90 day: 41.89 mpg (US)
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Denso TT

I found a link that explains how the TTs are a big improvement over the standard copper / nickel plug shape.

It's in Russian, but you get the idea! The TTs would seem to be the next best thing to the very pointy, dual tipped "SIP" super ignition plug, which seem to be less available for normal cars. The SIPs seem to be "OEM" only, not retrofit.

I'll give the Platinum TTs a try next time.
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