• Quad 4.5 in. Tips
• Mounting Hardware

The Dinan D660-0100-BLK Valved Axle-Back Exhaust enhances the G87 M2's sonic character with a deeper, more aggressive tone and improved flow. Featuring 76mm piping and quad 4.5 in. black ceramic tips, the system retains factory exhaust valves to provide a dual-mode sound profile — subdued and civil when needed, raw and expressive under throttle. The design mirrors the advanced drone abatement technologies developed for the M3/M4 platform, ensuring a refined experience inside the cabin while delivering track-worthy audio cues outside.

Dinan D660-0100-BLK Valved Axle-Back Exhaust Features:

• Maximum Gains of +6 HP and +5 ft-lb of Torque
• Enjoyably Louder, Sportier Sound
• Drone Abatement Technologies Used to Reduce Cabin Resonance
• Four, Diffuser Filling, 4.5 in. 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)
• Stock Exhaust Valve Actuators Reused, Exhaust Tone Adjustable via M-Drive Settings
• Computer Controlled Exhaust Valves Retained for Adaptive Sound Control
• 100% 304 Stainless Steel Construction
• Factory-Like Fitment with Included Mounting Hardware

Emissions Note:

This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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