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The F90 M5 has garnered acclaim for its impressive power, seamless delivery, and embodiment of BMW’s commitment to refined performance. Straight from the factory, it exemplifies German engineering with its blend of form and function. However, some aspects, such as the stock exhaust note, could be more refined. The standard exhaust offers a subdued aggressive tone, but Dinan believes such a powerful car deserves a more commanding sound. The goal is to enhance the vehicle’s presence without sacrificing any aspect of its performance, civility, or appearance.


To achieve the desired sound and tone for the F90 M5, Dinan enlarged the tubing to 83mm (up from the stock 80mm) to improve flow throughout the system. This larger tubing feeds into a Dinan-designed muffler that utilizes absorption and reactive technologies to enhance exhaust flow and reduce backpressure. This setup results in increased power output and a sporty sound that is civilized at low speeds but aggressively pleasing under hard acceleration. The retained computer-controlled exhaust valves help manage noise, staying quiet during low-speed driving and opening fully during high-load conditions to maximize flow and sound. Dinan’s exhaust is engineered to reduce low-RPM drone, ensuring the cabin remains quiet and intimate.


Beyond sound improvements, the Dinan F90 M5 exhaust is meticulously crafted from T304 stainless steel and TIG welded for an immaculate finish. The system includes quad 4" (102mm) clamp-on, double-walled, black ceramic-coated, laser-engraved exhaust tips. Dinan’s signature straight-cut tip design maintains its unique and elegant style, standing out in a market crowded with angled cuts. These tips fill the factory cut-outs perfectly, showcasing an aggressive yet refined look that is sure to turn heads.



- Increased Power: +6 HP @ 6600 RPM, +5 LB-FT @ 6600 RPM

- Louder, sportier sound

- Four 4" diameter clamp-on, double-walled, black ceramic-coated, laser-engraved exhaust tips

- 100% T304 stainless steel construction

- Larger diameter piping for increased flow (83mm vs 80mm)

- Retains stock exhaust valve actuators, allowing exhaust tone adjustment via M-drive settings

- Computer-controlled exhaust valves that limit noise during low-speed driving and open fully during high-load conditions

- Twin secondary exhaust valves are 76mm in diameter, making them 30% less restrictive than the OE valves

- Easy bolt-on installation with included mounting hardware


With the Dinan exhaust on your F90 M5, you get the perfect blend of aggressive tone and refined civility, aptly termed “refined aggression.”


  • Instructions for Part# D660-0079-BLK

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