3D Design G8X S58 / G16 M850i N63 Exhaust Valve Controller - Dual

The 3D Design Dual Exhaust Valve Controller gives drivers of the G87 M2, G80 / G81 M3, G82 / G83 M4, and G16 M850i Gran Coupé direct, on-demand control over the factory exhaust valve behavior. Designed as a precision electronic interface for vehicles equipped with S58 and N63 engine variants, the dual-channel controller allows independent adjustment of each exhaust valve position, enabling a wider range of acoustic tuning than the factory comfort or sport mode settings alone can achieve.

The controller installs inline with the OEM exhaust valve wiring harness and requires no permanent modifications to the vehicle's electrical system. A compact, driver-accessible unit provides real-time toggle control over valve open / closed states, giving the driver the ability to select the optimal exhaust note for the environment, from a subdued highway tone to a full open, track-focused soundtrack, without the need for any software modifications or tune changes.

Designed and manufactured in Japan, 3D Design components are developed with a focus on fitment precision, durability, and real-world usability. Their approach blends motorsport influence with street functionality, resulting in performance upgrades that enhance both experience and utility without sacrificing everyday practicality.

Product Details

• Requires factory active exhaust valves — fits BMW G87 M2 (S58), G80 / G81 M3 (S58), G82 / G83 M4 (S58), and G16 M850i Gran Coupé (N63)
• Dual-channel controller: independently adjusts left and right exhaust valve positions
• Installs inline with factory exhaust valve wiring harness, no permanent modifications
• Compact driver-accessible unit for real-time valve control
• Compatible with OEM comfort and sport valve wiring systems
• Designed and manufactured in Japan
• SKU: 4191-00102