Dinan Free Flow Axle-Back Exhaust for 2017-2020 BMW 330i/430i - D660-0069

Sharpen the sound and appearance of your BMW 330i or 430i with the Dinan D660-0069 Free Flow Axle-Back Exhaust. Engineered for select 2017-2020 BMW applications across the F30, F31, F32, F33, and F36 platforms, this single-in/dual-out system is constructed from 16-gauge T304 stainless steel and finished with twin polished 76mm (3-inch) laser-engraved exhaust tips. Dinan designed the exhaust to reduce backpressure and improve flow, producing gains of up to 4 HP and 3 lb-ft of torque at 6,600 RPM.

The exhaust delivers a more pronounced tone under acceleration without turning normal cruising into an overly intrusive experience. Dinan incorporates drone-abatement engineering to help control low-RPM cabin resonance, while the chambered muffler provides a balance between performance sound and everyday refinement. A 3-inch intermediate pipe feeds the single-inlet/dual-outlet muffler and transitions to 2.5-inch tailpipes. Installation uses the factory brackets and hangers with supplied hardware, and the factory computer-controlled exhaust valve is eliminated.

Key Features & Specs:

• Brand: Dinan
• Series: Free Flow
• Product Type: Axle-Back Exhaust
• Part Number: D660-0069
• Fitment: BMW 330i / 330i xDrive / 430i / 430i Gran Coupe / 430i xDrive
• Chassis: F30 / F31 / F32 / F33 / F36
• System Style: Rear Axle-Back
• Exhaust Configuration: Single In / Dual Out
• Exit Location: Rear
• Material: T304 / 304 Stainless Steel
• Body Material: 16-Gauge T304 Stainless Steel
• Pipe Material: T304 Stainless Steel
• System Finish: Brushed
• Intermediate Pipe Diameter: 3.0 in
• Tailpipe Diameter: 2.5 in
• Muffler Included: Yes
• Muffler Quantity: 1
• Muffler Configuration: Single Inlet / Dual Outlet
• Muffler Style: Chambered
• Muffler Material: 304 Stainless Steel
• Tip Finish: Polished
• Exhaust Tip Quantity: 2
• Tip Diameter: 76mm / 3 in
• Tip Material: 304 Stainless Steel
• Tip Shape: Round
• Tip Cut: Straight
• Tip Edge Style: Non-Rolled, Single-Wall
• Tip Branding: Laser-Engraved Dinan Logo
• Maximum HP Gain: +4 HP at 6,600 RPM
• Maximum Torque Gain: +3 lb-ft at 6,600 RPM
• Sound: Louder, sportier exhaust character
• Drone Control: Engineered to reduce low-RPM cabin resonance
• Factory Exhaust Valve: Eliminated
• Catalytic Converters Included: No
• Installation: Bolt-on using factory brackets and hangers
• Hardware Included: Yes
• Clamps Included: Yes
• Hangers Included: Yes
• Labor Time: 1.3 hours
• Length: 48 in
• Width: 30 in
• Height: 11 in
• Weight: 51 lb
• Grade Type: Performance
• Dinan Point Value: 3
• Emission Code: 5
• UPC: 813725024585

Fitment:

• 2017-2018 BMW 330i
• 2017-2019 BMW 330i xDrive
• 2017-2020 BMW 430i
• 2017-2020 BMW 430i Gran Coupe
• 2017-2020 BMW 430i xDrive
• 2017-2020 BMW 430i xDrive Gran Coupe