Quote:
Originally Posted by BMW DIY Guy
Sound comparison video is up!
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I realize we end-users can't know for sure, but it makes me wonder how much of the sound difference is really the EL midpipe vs the removal of the resonators & secondary cats. May be a noob question but I really am wondering/curious.
Any exhaust experts out there (that's a respectful call to folks who really know) that can weigh in on that?
ryan@ActiveAutowerke
I do have & have had a lot of AA products on my M235i & my F87, so this is not a question about the quality or efficacy of their products.