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Old 11-06-2012, 07:10 PM   #38
mugen79
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Join Date: Sep 2012
Drives: Ultramarine FRS(MT), IS350(sold)
Location: Auburn
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My FRS used to do this too.
I just changed my stock air filter to K&N drop in filter about three days ago and I haven't seen any fluctuation yet. I know it is too early to tell so I will follow up if anything happens.
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