E46Fanatics - View Single Post - 11 mpg in the city?
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Old 09-20-2012, 03:47 AM   #15
Registered User
Join Date: Apr 2008
Location: Boston
Posts: 4,971
My Ride: 2003 325xi
I'm running a wahler with no issues.

I recommend replacing the thermostat every 60k miles.
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