Fi Exhaust Mid Pipe + Valvetronic Muffler (Compatible with OEM Elect FI Exhaust Mercedes Benz AMG GT GTS Mid X Pipe + Valvetronic Mufflers Fi Exhaust Mid Pipe + Valvetronic Muffler (Compatible with OEM Elect Armytrix Stainless Steel Valvetronic Exhaust System For Porsche 997.2. Transform your BMW G30 M550i with the Fi Exhaust Valvetronic System, engineered for enthusiasts who demand the perfect harmony of power, sound, and sophistication. This complete system includes the front pipe, mid X pipe, and valvetronic muffler with quad silver tips, designed to retain OEM valve control seamlessly integrating with BMWs drive modes. Enjoy a refined and composed note in Comfort mode, or unleash an aggressive, full bodied roar in Sport mode. Crafted from high grade T304 stainless steel, this system maximizes exhaust flow, reduces backpressure, and enhances throttle response from the 4. 4L twin turbocharged N63 engine. The precision X pipe design ensures optimal exhaust scavenging for improved performance and that signature Fi tone powerful yet balanced, without unwanted cabin drone. Features: Complete system: front pipe, mid X pipe, valvetronic muffler, and quad silver tips Retains OEM valve functionality no external remote needed Premium T304 stainless steel construction Mandrel bent piping for optimal flow and durability Aggressive yet refined exhaust tone across drive modes Improved turbo response and mid range power Direct bolt on fitment no cutting or welding required Fitment: BMW G30 M550i Engine: 4. 4L Twin Turbo N63 Model Years: 20172023