Description
The DINAN Valved Axle-Back Exhaust for the 2021-2023 BMW M3/M4 elevates the driving experience to new heights. While the G8x M3/M4 already excels in various aspects, the sound department remains a key concern for many enthusiasts. DINAN addresses this weakness by introducing a valved axle-back exhaust system that delivers a deeper, more meaningful tone, accompanied by an additional level of amplification beyond the stock counterpart. For those seeking an even louder, smoother, and fuller soundtrack, the optional middle exhaust/x-pipe enhances the overall experience.
Extensive development and testing have gone into perfecting this exhaust system. Unlike its predecessor, the G8x chassis demanded a unique approach to ensure exceptional sound externally without introducing excessive internal cabin drone for both sedan and coupe body types. The result is a system that not only sounds superb but also maintains a pleasant cabin experience. The tubing has been enlarged to 76mm, allowing freer flow, reducing backpressure, and unlocking the desired sound volume and tone worthy of the G8x M3/M4.
When the exhaust valves are closed, the flow is directed into the Dinan muffler, incorporating absorption and reactive technologies, resulting in a more subdued yet deeper and agreeable note. During high-load conditions, the valves open, diverting most of the gases past the muffler for a near straight pipe design, delivering maximum aural enjoyment. This combination allows for civility or impassioned aggression, perfectly catering to the tasteful enthusiast who demands the best in all situations.
Crafted entirely out of T304 stainless steel and meticulously TIG welded, the Dinan G8x M3/M4 exhaust boasts exceptional visual appearance and color. The system's brush finish guarantees an immaculate look out of the box. Attention to detail extends to the quad 4.5-inch (114mm) double-walled, black ceramic-coated clamp-on tips with laser-engraved Dinan logo, seamlessly filling the factory cut-outs and providing an OEM+ look with a healthy dose of audible attitude.
Key Features:
- Maximum gains of +6 HP and +5 lb-ft of torque
- Enjoyably louder, sportier sound
- Drone abatement technologies reduce cabin resonance
- Quad 4.5-inch (114mm) double-walled, black ceramic-coated clamp-on tips with laser-engraved Dinan logo
- Larger diameter piping for increased flow (76mm vs. 70mm)
- 6 pounds lighter than the stock axle-back (Stock: 44 pounds vs. Dinan: 38 pounds)
- Retained stock exhaust valve actuators for adjustable exhaust tone via M-drive settings
- Retained computer-controlled exhaust valves for limited noise during low-speed driving and full opening during high-load conditions
- 100% 304 Stainless Steel construction
- Factory-like fitment with included mounting hardware
Upgrade your BMW M3/M4 with the DINAN Valved Axle-Back Exhaust and experience the perfect marriage of performance, aesthetics, and sound for your signature BMW performance model.
