BMW F13 640i x Zperformance x PP Performance - Time to wake up ! Insane Sound.

Exhaust come with valve as standard including our intelligent ECU system which control valve by engine RPM or remote control. Video Fitted with FI Complete Exhaust System includes: Catback Valvetronic Muffler + Quadi Tips Catless DownPipe. For more product information Please visit http://www.fi-exhaust.com/product/bmw/f13_640i.html Or email to us for inquiry: (info@fi-exhaust.com)(inquired@fi-exhaust.com)