Quote:
Originally Posted by BreakPoint
I'd like to know what an "upgraded" spark plug is and how it adds 7(exact)hp.
Good luck with the sale.
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it's the spark plugs that Active Autowerke uses in their supercharged cars. It's a slightly cooler plug, so you can run a little more timing and a little bit leaner. we dyno-tested it before and after on the dyno at active... the greatest gain was towards the peak RPM where the engine would cut timing because of heat, this way the engine goes to 8200rpm freely
