Was at my dealer today for inspection of my 2016 Cali T for track certification for Laguna Seca this Saturday. This is for the Ferrari Challenge which will be the first race for the 488 in North America. Apart from the 488 racing we allowed to track our cars. They did a brake flush which is track required if last brake flush was more than six months ago. While there I asked to drive a 2017 Cali with the HS package. On the drive I found that the car does handle better and sound way better. Lots of pops, barks and burbles. Shifts were noticeably faster albeit hard/harsh and I just couldn't make them much smoother. I did not think that it was faster than my car from an acceleration standpoint. While on the drive the sales manager mentioned that Ferrari is now selling and installing the HS exhaust system on cars without it. This really surprised me as I had been told by two Ferrari reps in the past that a retro system would not be available. It will be installed on Thursday so that I can have it for the track day at Laguna Seca! Cost is $4,450 including parts and labor. I'm very excited about this and can finally stop trying to find ways to enhance the exhaust sound.