Quote:
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Originally Posted by badblack550xi
Quote:
Originally Posted by Mbbrewer
I was waiting on your review before I pulled the trigger in this. Not enough 550's with aftermarket exhaust to get a lot of attention.
Having the valves open makes no difference on stock exhaust.
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time to make it none stock  |
I've got M5 mufflers on mine now. I have only seen this on the M5s until now. Wasn't sure if it would work on the 550. Looks like I'll be ordering one.