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Originally Posted by mptoledo
...Hype or not, there weren't any negatives, so really no down side since they were the same price...
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Well, except for possibly indexing, depth and heat range, you're probably right.
Don't get me wrong, NGKs are very good plugs, but the Boxster M96 engine was not designed for them.
You don't notice, but that doesn't mean there isn't a difference. If the heat range is off, even slightly, it could under some circumstances cause some knocking, possibly so subtle that you don't notice it, but the knock sensor might and force the DME to retard the spark or shift maps meaning a loss of performance or range. Then again, maybe not.
The point is, to notice any difference, you'd probably have to datalog them (and the oems) to know for sure. With oems, there's never any doubt.
Plugs and brakes have to be two of the most important components on the car. Why do people try to scrimp here?
