Leave them alone unless you have a specific reason to do otherwise. For the new boost gauge you may tap the vacuum line that the stock boost gauge and climate control actuator use... It comes off of the back of the upper plenum and branches a few ties from there.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
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