Magnaflow exhaust install question
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09-23-2012, 01:57 PM
Caught the Bimmer-Bug
Drives: '06 330i
Join Date: Aug 2011
I think that's for the 330i only, the 330i and 335 have vacuum operated a valve on the muffler.
Not sure what it does, but by plugging it you'd be doing the "golf tee mod"
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