Dinan's Free Flow axle-back exhaust for the G30 M550i reduces back pressure for a gain of 8 horsepower and 6 lb-ft at 6600 RPM while retaining the factory computer controlled valves that stay quiet at low speed and open fully under load. Built from 100% 304 stainless steel, it bolts on with the included hardware and uses drone abatement tuning to keep the cabin calm at cruise before the V8 opens up under throttle. Four 4 inch double-walled clamp-on tips finish the system in laser engraved black ceramic.
| Type | Free Flow axle-back exhaust |
| Material | 100% 304 stainless steel |
| Tips | Quad 4" double-walled clamp-on, laser engraved |
| Tip Finish | Black ceramic coated |
| Power Gain | +8 HP, +6 lb-ft @ 6600 RPM |
| Part Number | D660-0075-BLK |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2023 | BMW | M550i xDrive | Base |
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Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
