I've had people say that sometimes the stock MAS can't maximize the efficiency of a cold air intake. Is this true and if it is, is it worth it to purchase an aftermarket MAS and if so what brand?
Unless you are supercharged and have some way to trick the PCM in order to use a 2-bar MAP, there is no "upgrade" you can buy in a MAP sensor. It either reads vacuum or it doesn.t
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