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      10-24-2012, 02:20 PM   #31
mabrahams
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Drives: X1 M-Sport 28i
Join Date: Dec 2010
Location: Fl

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Quote:
Originally Posted by Cfrem15 View Post
On my 335i the right exhaust flap was closed till about 3000 rpm. The golf tee mod opens both of them up so it is a bit louder. There was 2 ways to do it. Either unhook it from the trunk or go under the car and plug the hose... Just watched a video on a 135i, so it should work on our x1

http://m.youtube.com/#/watch?v=19pq3...%3D19pq3nk8bRc
I've removed mine. Cut the arm (that opens the flat) and removed the ECV unit. It does sound a lot deeper now, I was somewhat surprised.
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