The Dinan High Flow Middle Exhaust replaces the hydroformed factory center section, including the resonator, with larger 3in (76mm) T304 stainless steel tubing for freer flow versus the 70mm stock piping. In place of the resonator, a mandrel-bent X-pipe crossover promotes even flow to both banks of tips and removes the uneven-flow harshness of the stock system. Deleting the resonator adds volume, producing a louder, smoother, fuller exhaust note. Installation is bolt-on using the included mounting hardware.
Specifications
| Type | High Flow Middle Exhaust (mandrel-bent X-pipe mid-section) |
| Material | T304 stainless steel |
| Diameter | 3in (76mm), replaces 70mm stock |
| Part Number | D660-0080 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2023 | BMW | M550i xDrive | Base |
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