Basically it is not DOT legal.
That being said.....
I am going to use it on my '63 Valiant.
We ( l ) have been using it on circle track cars for years. Stops a 3400 lb car at Martinsville or Tallatona just fine.
To my knowledge, no circle track car / race car above the street stock division uses ( or should not) use rubber hose.
My ( your?) Concern would be if it were " legal) to run in your state or even if you have state inspection.
Only other concern is that just as with rubber flex hose, you should keep it as short as possible.
Stainless braided / Teflon hose WILL and DOES expand to some degree under pressure resulting in ( minimal) pressure loss / increased pedal travel.
My final word is - go ahead and use it. Just be knowledgeable where and how you use it.
