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2011 Optima
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28 Posts
Discussion Starter #1
i plan on doing a lot of highway driving this and next year.Will a header help, evevn a little, to increase mpg's/ Some power would be nice too,but I'm thinking hardly nothing. 20111 non turbo
 

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2013 Kia Optima
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460 Posts
I don't think so... Go with an intake/throttle body spacer/catch can/use 89 octane/set your cruise control to 75 if you want to improve mileage over very long drives.

I have done these and some more to my 2013 LX, and regularly see 530+ miles per tank when long hauling.
 
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