Why not use something smooth like PVC pipe instead of flex tube for the air intake? It would cut down unwanted airflow turbulance. I currently am using it for "ram air" in my car (not a D) and it is even close to the exhaust manifold with no signs of wear from the heat. Besides having a smooth place for air flow to your engine the least amounts of bends and turns in the pipe help gain power. Any little bit helps! Shannon VIN# Not Yet! _____________________________________________________________ YourName@xxxx -- it's free from <a href="http://www.delorean.com"> DeLorean Motor Company</a>!