The Dinan 18-23 BMW M5 Freeflow Axleback Exhaust System is a high-performance exhaust upgrade designed to enhance sound and flow for the F90 M5. Constructed with enlarged 83mm tubing (up from the stock 80mm), it allows for increased exhaust flow and improved power output. The system features a muffler utilizing absorption and reactive technologies to optimize exhaust flow and reduce backpressure. It delivers a sporty, aggressive tone that can be civilized during low-speed driving thanks to computer-controlled exhaust valves that modulate noise levels. This design provides a balanced combination of refined sound and performance, often described as "refined aggression," while also minimizing low-RPM drone for a comfortable cabin environment.
Designed for 2018–2023 BMW M5 models, this axleback exhaust system is a direct bolt-on upgrade that enhances both sound and performance. Compatible with the F90 chassis, it is suitable for street use and spirited driving, offering a sportier sound profile without excessive noise. The kit includes all necessary components for installation and is engineered to improve exhaust flow and reduce backpressure, resulting in increased horsepower and a more aggressive exhaust note. This system is ideal for enthusiasts seeking a refined yet sporty sound and improved exhaust efficiency on their M5.
