Yep, it is a design flaw, but my dealer agreed it sounds terrible and they are committed to fixing it. They replaced the M Performance exhaust and, of course, the rattle was still here once the tips were reinstalled. They ordered a new set of these tips, but I know they will rattle all the same when they install them tomorrow. At that point, they seem like they will cave and order the new style M2C tips with the clamps, which I believe will eliminate the noise.
Quote:
Originally Posted by ried
It's normal. They literally all do this. For better or worse, it's how it was designed.
If you don't think that's the case, show us one example of an M2 + MPE that doesn't do this upon cold start.
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