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Old 09-21-2009, 04:49 PM   #11
CASTREX
Who said Yaris was slow?
 
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Drives: Yaris T-Sport 2008
Join Date: Nov 2006
Location: Costa Rica
Posts: 1,287
So basically 2 step colder Iridiums.


Why would you want colder plugs if you are not FI or advancing ignition timing?

Unless the TOM's gadget could increase the risk for knock at the highest settings...

Did the sales person advise you to use this plugs along with the TOM's unit? Or did you got them just because they were TRD?


Anyway... this is interesting stuff. Some one get more info!!

Last edited by CASTREX; 09-21-2009 at 05:17 PM.
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