Dinan Free Flow Axle-Back Exhaust for 2006-2010 BMW M5 E60 - D660-0009A

Let the high-revving character of the E60 M5 come through with the Dinan D660-0009A Free Flow Axle-Back Exhaust. Engineered specifically for the 2006-2010 BMW M5, this rear exhaust system combines 100% T304 stainless steel construction with dual chambered mufflers and quad 3.5-inch polished stainless steel tips. Dinan tuned the system for increased exhaust flow and a more assertive wide-open-throttle sound while controlling the low-RPM drone often associated with aftermarket M5 exhausts. Maximum gains are listed at 9 HP and 6 lb-ft of torque at 8,000 RPM.

Beyond sound and flow, the D660-0009A sheds more than 20 pounds compared with the factory exhaust. The polished tips incorporate Dinan's “Cool Tip” design, which uses an inner and outer tip configuration with ventilation at the base to reduce surface temperatures and help limit heat-related discoloration. Factory brackets and hangers are retained for a clean, factory-style installation, while the quad straight-cut outlets preserve the aggressive four-tip appearance expected at the rear of the E60 M5.

Key Features & Specs:

• Brand: Dinan
• Series: Free Flow
• Product Type: Axle-Back Exhaust
• Part Number: D660-0009A
• Fitment: BMW M5
• Chassis: E60
• System Style: Rear Axle-Back
• Exhaust Configuration: Dual In / Four Out
• Exit Location: Split Rear
• Material: T304 / 304 Stainless Steel
• Muffler Material: 304 Stainless Steel
• Muffler Quantity: 2
• Muffler Configuration: Single Inlet / Dual Outlet
• Muffler Style: Chambered
• Tailpipe Diameter: 3.25 in
• Exhaust Tip Quantity: 4
• Tip Diameter: 3.5 in
• Tip Shape: Round
• Tip Cut: Straight
• Tip Edge Style: Non-Rolled, Single-Wall
• Tip Material: 304 Stainless Steel
• Tip Finish: Polished
• Tip Branding: Laser-Engraved Dinan Logo
• Tip Technology: Dinan Cool Tip design
• Maximum HP Gain: +9 HP at 8,000 RPM
• Maximum Torque Gain: +6 lb-ft at 8,000 RPM
• Weight Reduction: More than 20 lb lighter than stock
• Sound: More pronounced, sporty exhaust note with aggressive wide-open-throttle character
• Drone Control: Engineered to reduce low-RPM cabin resonance
• Catalytic Converters Included: No
• Installation: Uses factory brackets and hangers
• Hardware Included: Yes
• Clamps Included: Yes
• Hangers Included: Yes
• Labor Time: 1.6 hours
• Length: 48 in
• Width: 30 in
• Height: 11 in
• Weight: 72 lb
• Grade Type: Performance
• Dinan Point Value: 3
• Emission Code: 5
• UPC: 813725021461

Fitment:

• 2006-2010 BMW M5 - E60