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Performance or bs?

2018 Views 6 Replies 6 Participants Last post by  phobic
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What it is is a resistor added to the MAF sensor. What it DOES is force the vehicle to run rich (think the xB is flowing much more air than it is, rather than ACTUALLY flowing more air).

So, it may add some immediate power gain, but at a massive loss of MPG.
The VVT-i is a much more effective mechanism at making power efficiently.
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