Or why not just enjoy the car as Maserati intended - it is a Maserati after all with 390HP and not a Ford Fiesta...
Hmmm. Posting that in a thread about modifications is a bit like going to a Japanese restaurant and asking for a ploughmans!
OEM cars have compromises. Restrictive cats, suspension that might give too much roll for some people's tastes, iffy brakes. What does the car that Maserati 'intended' to build have to do with anything? Are you saying these guys are geniuses who get every aspect of a vehicle spot on? It's a beautiful car with a great engine, but I want it to breathe better, corner in more neutral, flatter manner and stop consistently for a few laps on the track. As I said, I don't want to alter the fundamental character of the car, just make some subtle improvements.