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#6: 01-06-2013, 07:14 PM
Title: Senior Contributor
Location: MD
Car: 11 2.5i Premium 6sp w/ Leather
Posts: 932
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Originally Posted by faded-a-fool View Post
He is trying to reset the ECU b/c an aftermarket muffler is causing him to lose 20% of his MPGs.

I know b/c I sold him the muffler.

Wow 20% mileage drop from a muffler? Some people really should leave their cars stock.