Ferrari 575 HGTC Acceleration FIAMMENGHI RACE EXHAUST Acceleration & Sound by turboandstance - May 22, 2020August 17, 2020 Ferrari 575 HGTC Acceleration from standstill with valved exhaust system. During this run the valves were open ofcourse. This beast has a exhaust system with 6-1 manifold + 200cps Cat + x-pipes + HGTC back muffler. The sound of this beast is phenomenal! Watch the video of this neautifull soundingFerrari below,