CDC Performance has prepared a custom Maserati Quattroporte with many
exterior modifications and interior upgrades, all matched by a newly
developed twin-compressor system for the engine which raises the output
to 580 HP anf 570 Nm of torque.
The list of exterior features
includes aerodynamically styled elements made out of carbon fiber, such
as a front spoiler, bumper, side skirts, rear apron with diffuser, roof
spoiler, mirror casings and rear spoiler, plus darkened headlights and
taillights, newly integrated LEDs, a new grille also finished in
black and a set of 22 inch alloy wheels wrapped in 245/30-22, 295/25-22 tires front and rear. 
Inside
the Maserati Quattroporte, CDC Performance has made extensive usage of
carbon and leather, along with contrasting, diamond shaped, red stitching
and various other enhancements. The tuner has also adapted the
tachometer and clock in terms of color and design and integrated them in
the overall picture.
In the performance department the new
twin-compressor system which we already mentioned makes the Quattroporte
quicker as the 0 to 100 Km/h sprint can now be completed in 4.6 seconds
while the vehicle’s top speed is now just below 300 Km/h.
The
rest of the upgrades developed by CDC Performance for the Maserati
Quatroporte include a high-performance brake system (12 piston calipers
with 405x36mm 2-piece brake discs at the front and 4 piston calipers with 380x34mm 2-piece brake discs at the rear), a stainless steel coilover suspension with adjustable train, pressure and height, plus a muffler for the exhaust system which is equipped with a valve system operated via a sport button.

Source: CDC Performance