Thread: BMW PE
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      02-21-2013, 10:43 PM   #7
Johnny D
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Quote:
Originally Posted by mauibuilt_328 View Post
Are you referring to the "break in period" being a placebo effect or the PE itself being a placebo?
I'm referring to any "change in sound". I could see it if it was a packed muffler, but if it isn't, I don't see how that would happen.
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