Quote:
Originally Posted by AdrianE36
There's a vacuum line that connects to the stock manifold on the forward side of the throttle body, right behind it. It's a hard plastic line (like the line that goes from the vacuum pump to the brake booster) so it can't bend without possibly breaking. On the N54 TB, the connection for that line faces the firewall so I had to flip it around so it points towards the front of the car.
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It's not vacuum line. It's connection to gas tank ventilation. It should face fire wall so you can connect it to vent line.