Quote:
Originally Posted by juddholland
I was able to remove the actuator valve but I'm nervous about going through with it. Have you done it to the X3 yourself? Has anyone done this and experienced no problems? Wouldn't want to unplug it and start the car, only to be found among the smithereens that fall upon the ground.
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Yes! I have done this on our X3 35i and our 2011 335i without any problems. The sound is a more distinct grumble on start up and with light to moderate throttle acceleration. It just gives a little more beefiness to the sound, but it's not anything amazing like an aftermarket exhaust system.
It is a little more noticible on the the 335i and have driven it this way for 15,000 miles.
Honestly, it will throw a shadow code - but no SES lights or CEL's in the dash to worry about. The dealer will not hassle you about this.
And if they do decide to be tight asses, a mysteriously disconnected or "loose" cable would be easier to explain than a broken off golf tee or too small of a bearing lost in your vaccum line
