Dinan High Flow Mid-Pipe - 2017-2021 BMW M240i

Stainless Steel - 3.25" - F22

Part # D660-0068 Be the first to write a review
Estimated shipping date: 03/02/2022
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The Dinan High Flow Mid-pipe for the F22 M240i allows for an aggressive tone to be achieved out of the stock system. Coupled with the associated Dinan exhaust the sound is further perfected into an aggressive growl that is hard to ignore. This full mid-section removes the factory center section, including both resonators, and replaces it with straight through 3.25" T304 stainless steel tubing for better flow and sound while also reducing the weight by 3 pounds.


  • Deletes both resonators, between catalyst and rear muffler.
  • Stock hydro-formed 80mm piping is replaced by 3.25" (82.6mm) mandrel-bent piping for free flow.
  • 100% 304 stainless steel construction.
  • Bolt-on installation.
  • Includes mounting hardware.
  • Weight savings over stock: Stock = 24 lbs; Dinan = 21 lbs.
Brand Dinan
Dinan Point Value1
Emission Code5
Labor Time (Hours)2.5
Product TypeMid-Pipe
Part NumberD660-0068

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Only confirmed to fit with the Dinan Free Flow Axle Back and stock exhaust systems. Fitment with other axle back units is not guaranteed.

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