Put these lines on the gixxer Friday along with Braking CM55 front pads and Motul 5.1 fluid.
And all I have to say is Wow! After installing everything, bleeding them thoroughly, and going out for a brake in session... they are 100 times better than stock. The stock ones felt like sponges.. theses are rocks by comparison... great feel and modulation now.. it a damn beautiful thing.

These lines are the ones that have the direct line into the calipers verses the banjo bolt application... so far, love it.

As far as installing them.. went ok, the gixxer really isn't very duel line friendly up by the master cylinder there isn't much room at all... had to make several attempts at getting the lines on the cylinder just right. In retrospect it would have been a lot easier to get the racing TLines. These lines do say "race use only" who knows why? My guess is because if you squeeze them just a little too hard you will be doing a serious stoppy.