2014 Maserati Quattroporte S Q4 w/ Custom Fi Exhaust REVVING! (Valves Closed & Open!)
Check out this 2014 Maserati Quattroporte S Q4 fitted with a custom Fi Exhaust system! The exhaust sound is definitely not too bad! Video includes the new Maserati Quattroporte doing several revs with valves closed and open! Enjoy!
