<p>
I made the boot larger following Dan Pattinsons YouTube tutorial, big improvement. Then I added this: http://www.ebay.com/itm/1-5-4-PLY-45...53.m1438.l2649 This takes the place of the 90 degree elbow. It allows full travel of the motor and is less restrictive. I shortened one leg and cut a notch for the tab on the output port, it fits perfectly without a clamp. The fitting on my Fein shopvac slips right into the tube so I can still use the vac for other things when the saw is not in use. The turbo intake tubing seems custom made for this purpose! cost $6.</p>