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      10-22-2011, 12:47 PM   #2
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Drives: JB 11 E92 M3 ZCP
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Quote:
Originally Posted by Legion5 View Post
So from what I understand there are 4 chambers in the exhaust each with a perforated pipe.

If you just want the exhaust to sound a little louder and a lot better, you replace the perforated pipe with a straight one in the INNER 2 chambers. If you want the exhaust to sound a lot louder, you replace the perforated pipe in all the chambers.

I just want to make sure everything is right.
INNER 2 YES . OUTER 2 STRAIGHT & 90s .
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