Quote:
Originally Posted by k808
X4guy, I have done it on my 35i X3. It is not the same as the old "golf tee mod" as the flap is closed until it receives vacuum from the vacuum control valve in the left rear of the hatch. I spliced the vacuum lines together to bypass the control and the flap opens as soon as the car is started. It is a little loud in the X3 definitely noticeable and a little on the drony side. I'm thinking the ExhaustMeister mod might be a good idea so that you can easily control when you want it open.
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can you post a pic of the splice that you did? Im curious of where this control valve is and what the splice looks like. I did the mod an entirely difference way and i think your way sounds like it will be easier.