The Scuderia Audio GranCabrio Rear Speakers Upgrade fits the following Maserati models including but not limited to, Maserati Grancabrio

Scuderia Audio has designed a kit to upgrade your OEM speakers that are mounted between the rear seats with two high quality 5 subwoofers, each with huge 21 oz. magnets and 100 Watts of power handling capacity.
Includes two subwoofers and two 3D printed subwoofer mounting plates with brass threaded inserts. Just unbolt your factory speakers and bolt in these new subwoofers for an immediate improvement in bass!