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      05-08-2012, 06:54 AM   #26
bigjae1976
That's what she said...
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Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Quote:
Originally Posted by GTM_Challenge View Post
Its best to use 3M adhesive promoter pads after cleaning on the bumper surface area where the tap will make contact.
Didn't know that. I used the 3m tape, cleaned the paint with 3M adhesive remover. The diffuser would stick really good but the tape would start to unstick over the exhaust pipes and then just get worse. So the adhesive promoter will help with this? I think this is an issue for every diffuser.

I would just hate to look in my rear view mirror to see my $1000 diffuser tumbling along the asphalt behind me...about to be squashed by another car So I, personally, have no issue with screwing my diffuser to the bumper.
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