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      03-25-2014, 12:26 AM   #10
cmkde
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Drives: Alpine White 15' M4
Join Date: Mar 2014
Location: Vegas

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Quote:
Originally Posted by Delnari View Post
Quick question on the muffler (M Performance exhaust). It's just a muffler bolt up from the axle collector pipes right? Does it have an electronic butterfly valve that open and closes? I think the stock muffler does.
I believe it does, yes it just is the axel-back from what I understand on startup they sound similar unless it's cold start. However when getting on it, it should be way more aggressive in tone. We'll find out soon enough. I've had 300mi on stock sport exhaust so I'll notice the differences in each area.
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