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Old 12-29-2012, 09:12 PM   #5
Scooby Newbie
Member#: 185688
Join Date: Jul 2008
Chapter/Region: NESIC
Location: Maine
2006 STi
WR Blue


Sounds like a leak or dirty MAF to me. Usually an aftermarket intake wont make it idle rough. The tune is (mostly) for the boost issues associated with a higher flowing intake.
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roadtrip1098 is offline   Reply With Quote