Dinan Free Flow Axle-Back Exhaust for 2016-2018 BMW M2 F87 - D660-0056-BLK

Give your 2016-2018 BMW F87 M2 a more aggressive exhaust note while retaining the refinement needed for daily driving with the Dinan D660-0056-BLK Free Flow Axle-Back Exhaust. Constructed from T304 stainless steel, this performance exhaust uses the factory computer-controlled exhaust valve together with Dinan's muffler design to provide quieter operation at lower speeds and freer exhaust flow under high-load conditions. The system is finished with four 3.5-inch black ceramic, laser-engraved Dinan exhaust tips, and Dinan reports maximum gains of 6 HP and 5 lb-ft of torque.

When the factory-controlled valve is closed, the system helps maintain a more subdued exhaust character. When the valve opens under higher-load conditions, exhaust flows straight through 3.25-inch tubing for increased flow, volume, and a more aggressive tone. Dinan retains the stock exhaust valve actuator and uses factory brackets and hangers for factory-style mounting.

Key Features & Specs:

• Brand: Dinan
• Series: Free Flow
• Product Type: Axle-Back Exhaust
• Part Number: D660-0056-BLK
• SKU: DNND660-0056-BLK
• Fitment: BMW M2
• Chassis: F87
• Material: T304 Stainless Steel
• Body Material: T304 Stainless Steel
• Pipe Material: T304 Stainless Steel
• System Finish: Brushed
• Tip Finish: Black Ceramic
• Exhaust Tip Quantity: 4
• Tip Diameter: 3.5 in
• Tip Branding: Laser-Engraved Dinan Logo
• Maximum HP Gain: +6 HP
• Maximum Torque Gain: +5 lb-ft
• Open-Valve Tubing: 3.25 in
• Exhaust Valve: Factory computer-controlled valve retained
• Factory Valve Actuator: Reused
• Valve Open: Straight-through exhaust flow for increased sound and flow
• Valve Closed: Reduced exhaust volume for more subdued driving
• Sound: Louder, sportier exhaust tone
• Drone Control: Dinan muffler design intended to reduce unwanted cabin drone
• Installation: Uses factory brackets, hangers, and mounting points
• Clamps Included: Yes
• Hangers Included: Yes
• Labor Time: 1.2 hours
• Length: 50 in
• Width: 34 in
• Height: 12 in
• Weight: 45 lb
• Grade Type: Performance
• Dinan Point Value: 3
• Emission Code: 5
• UPC: 813725023304

Fitment:

• 2016-2018 BMW M2 - F87