Dinan High Flow Mid-Pipe - 2016-2020 BMW 340i/440i

OVERVIEW

Removes the factory center exhaust section, including both resonators, and replaces it with straight-through 3.25" T304 stainless steel mandrel-bent tubing for better flow and a more aggressive tone. Also sheds 3 lbs versus stock.

SPECS

• Deletes both resonators between the catalyst and rear muffler
• 3.25" (82.6mm) mandrel-bent piping replaces stock 80mm hydroformed piping
• Weight savings: Stock 24 lbs vs. Dinan 21 lbs

PARTS INCLUDED

• 1x high flow mid-pipe
• Mounting hardware

TECH RESOURCES

• Installation Instructions (PDF)
• Confirmed fitment with the Dinan Free Flow Axle-Back and the stock exhaust; fitment with other axle-backs not guaranteed

PART NUMBER

• D660-0057

VEHICLE APPLICATIONS