I've had them on when I had an NA, on my old TT and on my current TT. All of which have seen plenty of track time from auto crossing road racing and drag racing. Plus it is daily driven. I doubt they were the arms. By the sound of it you may have other issues going on that are causing the noises or they were installed wrong or something was left loose. How the heck did the arms bend? Hmm, would like to see pics of that if that is so.