QUOTE(DBCooper @ Dec 31 2012, 05:44 PM)

Those clamps, the Napa photo and the German, both work the same way. The only difference is the thickness of the band material, and I don't see how that could affect performance or damage the hose. Same width and surface area.
Whew, Nine 14, you had me worried there. I have three or four BMW's in the garage with those Napa fuel line clamps. Couldn't deal with any more balls of fire between my legs.

That's what i have said, the thickness.
A friend of mine is working for mercedes company in a german workshop.
The Mechanics are directed, not to use those clamps in the fi system and i do
same.
At least we are talking about an product with worth of a few cent.