Dinan Free Flow Exhaust for BMW F30 F31 328i | F32 F33 428i 12-15


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Dinan Free Flow Stainless Exhaust for BMW F30 F31 328i F32 428i

Dinan engineers designed the BMW 328i/428i exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a sporty note that is civilised when cruising yet has an aggressive bark under hard acceleration. Like all Dinan exhausts, the 328i/428i Free Flow Axle-Back Exhaust is engineered to reduce low-RPM drone so the cabin of the vehicle is still intimate and not drowned in loud drone. 

The system is built for a simple bolt-on installation with included mounting hardware. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 70 mm ceramic black or polished and laser engraved exhaust tips for a tasteful, high-performance look that yields a maximum performance gain of 4 horsepower and 3 ft-lbs of torque.

Benefits of the Dinan F30/31 328i, F32/33 428i Free Flow Axle-Back Exhaust:

  • Simple bolt-on installation with included mounting hardware
  • Louder sporty note
  • 304 stainless steel construction
  • Twin 70 mm (2.75") laser engraved ceramic black or polished stainless steel exhaust tips
  • Increase Power 4 HP @ 6600 RPM

*Factory computer-controlled exhaust valve is eliminated.