Maybe, but so far so good. 🙂 I am keeping the bits in the car for a while just in case something goes horribly wrong and I have to rig another solution. But both ends were hose, so I figured all hose would be OK. It does come off just above the EGR valve and goes all the way to the firewall to a widget near the windshield wiper motor, which I assume is emissions related. Whatever it is I don't think there is much flow because there are only a couple vacuum looking hoses attached to the widget, so I am assuming it's just a giant vacuum hose.