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      09-21-2012, 10:53 AM   #44
335DEE
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Drives: 335d
Join Date: Feb 2009
Location: England

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my 35d now has blanks , it's not a bad idea to do , do discernible difference power performance or mpg.. but with added peace of mind.

It's also not a bad idea to have the manifold seals changed while the job is done.