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      11-21-2008, 11:21 AM   #22
Got Track!!!!!!
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Drives: 08 M3 coupe
Join Date: Aug 2008
Location: Fayetteville..NC

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Originally Posted by samM376' View Post
That would be best but one problem. From the time you switch the Filters you will still need to drive around for 50-100 miles so the DME can totally adjust itself for the new airflow it feels. So switching them out may actually turn out worse. Maybe you should look into some RPI scoops and force airflow at speed through your filter
You think?? I dont know I am not really sold on the ECU relearning thing, maybe some one can break it down..

I did notice my Miles per Gallon went up.. @ 60mph I was getting the best of 20.4 for a distance of 40 miles, I drove the same route and averaged 22.1 for the same distance...

But who really drive these car that way??