Put a iso thermal plenum spacer in now i get worse gas milage????
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#4
What is your driving style and how much MPG were you getting before? If you're able to average 20+mpg, then you're more likely to gain. But if you're averaging 16-18, then it will probably go down with more performance mod.
Just because you drive the same, doesn't mean any product will help or hurt performance. power = burning fuel.
Just because you drive the same, doesn't mean any product will help or hurt performance. power = burning fuel.
#7
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