Dinan Free Flow Stainless Steel Exhaust -BMW M3 2016-2015 M4 2016-2015


  • $2,386.10

Product Introduction

  • Dinan’s Free Flow exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points.
  • Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration, while reducing drone inside the vehicle, thanks to computer controlled valves that limit noise during low speed driving and open fully during high-load conditions to allow free flow.
  • The exhaust gasses exit through larger laser engraved black ceramic quad tips.

Features and Benefits Of This Product

  • Maximum gain of +5 HP
  • Sportier sound
  • 100% 304 Stainless Steel Construction
  • Quad 3.5" laser engraved black ceramic tips with Dinan logo
  • Computer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow
  • Stock exhaust valve actuaters are reused
  • Operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-Drive settings.
  • Dinan exhaust is 3 lbs lighter than stock
  • Twin secondary exhaust valves with a whopping 76mm diameter, making them 45% less restrictive than the OE valves.
  • Includes mounting hardware

This Product Fits:

  • 2015-2018 BMW M4 Coupe
  • 2015-2018 BMW M4 Convertible
  • 2015-2018 BMW M3 Sedan

Notes / Warnings

  • Every Dinan product comes with an industry exclusive factory matching new car bumper to bumper warranty and is designed and tested in Morgan Hill, California and can be installed at any Dinan Approved BMW dealership nationwide.

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