Apectrum Performance


BMW F20/F21 N13 Sport Cat. Downpipe


Apectrum turbo downpipes are made by high-grade stainless steel for greater strength and enhance temperature, corrosion resistance.
Our downpipe is equipped with high quality sport catalytic converter with larger pipe, which optimizes air flow dynamic and back pressure to unleash extra power and torque.
Also enhancing the responsiveness of accelerator pedal and reduce engine temperature.

By adopting high quality sport catalytic converter, our downpipe offers not only more driving pleasure, but also optimizes reduction of pollutant gas.
We offer an exciting exhaust for giving your car with more tuning potential, as well as sporty sound at all revs.

By using sophisticated materials, our turbo downpipes are much lighter than the stock exhausts.
In addition our downpipes are designed with strong mounting brackets to provide more solid installation than OEM ones.

  • 2.5” (63.5mm) High-flow pipe diameter
  • 200CPSI sport catalytic converter
  • SUS304 stainless steel lightweight construction
  • High quality CNC/Welding workmanship
  • Aggressive sporty sound
  • Performance increased, low back pressure
  • Made in Taiwan
  • Compatible models: F20/F21 N13, 116i, 118i, 120i