I heard that it is possible to perform a GTC upgrade on a 575M but how about a 550? Has anyone done this? Regards, Chris
No. Suspension electronics are not compatible, so you cannot use replacement ECU. Exhaust, springs and swaybar are OK though. You would need to get the shocks revalved to suit.
Stephen, Thanks for the info. I assume the brakes and 19" wheels would be useable correct? Regards, Chris
I'd assume so, but think a Brembo or AP Racing big brake kit would be significantly better value for money.