Installation of Liberty Walk BMW E92 M3 w/ Fi Exhaust Pt. 1 HD

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: Front pipe Mid X pipe Catback Valvetronic Muffler Quad Tips Please visit for more product information. Or email to us for inquiry: info@