Pretty certain its quite the opposite...if a stock boosted car uses platinums, there may be a reason IMO. I've heard Iridiums just heat up too much under boost.
With your platinums, did you do the "for every 100HP over stock, add 1 heat range and .001" closer gap?"
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ASE: Brakes
Yea..that very well could have been the most retarded idea I've ever heard, but .. do it anyway. -TheShow50h