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      02-20-2013, 04:59 PM   #4
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Drives: 2015 M4 Coupe
Join Date: May 2012
Location: Winter Park, FL

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Quote:
Originally Posted by Kid Red View Post
How often is this needed or at what miles? Is there a way to know when you need it?
It all really depends. We're able to look into the valves with the digital inspection camera we have and can tell how bad they are.

If you've never had it done before, I would highly suggest it.
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