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Old 06-03-2013, 04:43 PM   #8 (permalink)
shovel
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At the same time, it will let your car horsepower. ... woo!

I remember this sort of thing discussed before - perhaps on another forum. Someone ordered one since the price was trivial, just to dissect and found that it contained a couple electrolytic capacitors - I guess the general idea is to reduce 'alternator noise' in the electrical system so all of the sensors, injectors, etc have as stable a reference voltage as possible. But expecting a few microfarads tied to the cig lighter to make that difference is a stretch...
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