Racing Dynamics  |  SKU: #130 10 55 450

Racing Dynamics Downpipe BMW M2 | M3 | M4 w/ S5 Motor 2015-2021


Racing Dynamics Downpipes for BMW M3 F80, BMW M4 F82/F83 and BMW M2 Competition with S55 turbocharged 3.0 liter inline-6 motor.


  • This model replaces the restrictive OEM catayltic converters with 200 cell sport cats for increased HP and Torque.
  • Gen2 version is the 2nd generation of our downpipes and now incorporates flex joints to absorb engine/chassis vibration and improve installation.
  • These downpipes now incorporate heat shielding over most of their lengths to reduce radiant heating into cabin and engine compartment.
  • This downpipe fits BMW 2 series M2 Competition and BMW 3 and 4 series, F80/F82 M3/M4 with S55 turbocharged 3.0 liter inline-6 motor.
  • Removing exhaust flow restrictions increases horsepower and torque significantly.
  • Our Gen2 M3/M4 downpipes are now a full 76mm (3") in diamter for best air flow. Low cost versions are generally only 70 mm (2.75")
  • Improves throttle response and generally improves turbo spool up.
  • Downpipes are manufactured out of 304 stainless steel.
  • Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound. Straight-through design improves horsepower and torque significantly
  • Direct bolt-on replacement for OEM primary catalytic converters.
  • Our Gen2 downpipes now include heatshield covering over 90% of the downpipes
  • Less thermal load on the turbocharger
  • Recommended for track/off-road use only.
  • BMW M3 F80 2014 on
  • BMW M4 F82 2014 on
  • BMW M4 cabrio F83 2014 on
  • BMW M2 Competition 2018 on


  • Model
    M3, M2