These Breeze Aero-Seal Heavy Duty full Stainless Steel Liner Clamps with a 1/2" band.

What is a "Liner" Hose Clamp?  It the the ideal clamp for use with silicone and rubber hose.  There is an inner sleeve that protects the hose from the perforations that the worm gear drives in.  These are much stronger than the clamps with the raised "bumps" in the clamp band.  We have used these on 500+ HP turbos with great success, even when running WOT for a couple minutes on the Salt Flats!

Photo three shows the inner "liner" band that protects the hose from being marred or damaged.