A couple of weeks back replaced the stock intercooler scoop (the one with the leather on it) because the leather just gave up and was flapping in the wind. We replaced it with a solid fiberglass one. Within a week the car was stumbling under boost. We knew we had a bad battery( which was replaced under warranty) and we knew we had pulled the instrument panel for a speedo cable replacement and had probably had not got the connector completely seated, so we pulled it and made sure it was seated. We also noticed that when we popped the hood the clamp on the hose at the turbo from the intercooler had come loose (clamp had worked off and hose was cocked) so we tighten it back up, After we made these fixes it ran fine. Well today it started stumble again, I popped the hood and now the clamp at the bottom end of the hose come loose and am guessing when the torque set in it is twisting the hose and we are sucking some no intercooler air. Is this a possible cause of the stumble? If it is, is there connection between the new scoop and the problem?