Ah, very stealthy! That's great. We've only had Sally just a year last August and have basically just been enjoying this surprisingly fun little gem. Never been to the track with her, but may do so this year, but on the state roads and backroads in the Adirondacks she's shown impressive...
I just had the same problem with my 07 Jeep. That is a hydraulic transfer line. In my case I had no choice but to replace the entire rack because there were no replacement lines available from any source, including rebuilder Cardone. Junkyard part is a possibility, but risky for breakage while...