Funny, I was just in a conversation on the urq list about such things. I put on uncovered SS lines about 3 years ago for a set of 996tt calipers and this is about when I figured on replacing them. There are lines with protective sleeves to keep dirt out of the braid where it can cut the teflon, I probably will get OEM-style rubber lines if I can work out the fittings. Here is the story that made me decide that the SS was only temporary (just to get the brake upgrade installed and checked out).
The whole story:
http://www.quattro123.com/MPTSNeqWatkinsGlenAug2003.htm
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This is what appears to be a stainless steel brake line.
With the end fitting worked loose.
** A MAJOR PROBLEM ! **
No tech inspection is going to discover this.
The result of the fitting coming loose is this:
and that's just the least of this owners troubles.
The result on the track was the brake pedal went to
the floor at the end of a 100 MPH straight!
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