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Old 09-02-2013, 06:14 PM   #7
Trigonx
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Join Date: Jul 2013
Drives: WRB BRZ
Location: Wisconsin
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I installed the K&N air filter last weekend, have gone through one full tank of gas. My MPG has increased by 1.3 mpg, from 25.57 mpg to 26.9 mpg. I did not reset the ECU, I just popped it in.
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