This "NASA PIPING" you were wondering about is this really cool looking rubber piping that my wife swiped for me from NASA (She's an E. E. out there). Read my other thread for more info. It looks freaking wicked. Your shroud idea is perfct. just going to slide a piece of the piping over the metal pipe and cut a whole for the BOV. I will post pics of the pipng within the next few days and you will see what I am talking about. Way freaking wicked sh**.