MAD BMW F90 M5 F92 M8 Primary Catted Downpipes S63R



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Introducing the MAD F90 Primary Catted Downpipes - the ultimate BMW F90 M5 upgrade for enhanced engine potential, increased power, and torque throughout the RPM range.

Constructed from top-quality T304 stainless steel, these downpipes are designed for longevity. Mandrel-bent for optimal flow, they feature smooth transitions to minimize turbulence and improve exhaust gas flow, resulting in noticeable power, torque gains, and a more aggressive exhaust note.

Installation is simple, requiring no cutting or welding. MAD F90 Primary Downpipes are designed to bolt directly onto your BMW F90 M5's factory exhaust system and include all necessary hardware and gaskets for an easy installation.

Upgrade your BMW F90 M5 with MAD F90 Primary Downpipes and unleash your engine's full potential, leaving the stock exhaust system behind.


Race Competition Use Only


  • Compatible with right-hand drive and left-hand drive vehicles
  • 200 CEL High Flow Cats
  • Smooth bends for maximum airflow without any drone
  • Up to 30HP increase on the stock turbos, even more on upgraded turbos
  • Lifetime warranty on defects and fitment
  • 90 day return period
  • All orders ship in 1-2 business days
  • Spot on fitment
  • Flex section


  • 2018+ BMW F90 M5
  • 2019+ BMW F92 M8