Hmmm my factory box didn't have an extension. I just pulled it back out of the box and checked to measure the lines. The vacuum lines were just longer. Maybe thats the issue. Some had this extension and some didn't. Oh well I guess I'll just add 7 inches in before the heater panel. Still makes me mad though. And no I didn't try to call them today. As I'm sure they are closed. I'll give them a call in the morning. That's the reason I didn't call them out in this post.