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BMW N20 Downpipe

New product

REDSTAR BMW N20 catless downpipe has long 3.5in OD section and smooth transition to the OEM exhaust.

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  • No Heat Shield
  • Includes Heat Shield
  • Catless

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Compatible Vehicles:

  • BMW F20 125i
  • BMW F21 125i
  • BMW F22 220i 228i
  • BMW F30 320i 328i
  • BMW F31 320i 328i
  • BMW F32 420i 428i
  • BMW F33 420i 428i
  • BMW F34 320i 328i
  • BMW F35 320i 328i
  • BMW F36 420i 428i

*Available options: 

  • Double-layer heatshielding is used to protect surrounding parts, wires, and hoses against radiant heat from the downpipes.
    Integrated thermal insulation reduces surface temperature up to 70%! What makes it an absolute winner, compared to usual thermal wrapping or ceramic coatings.
    It’s very important not just for safety reasons but also affects engine performance by reducing the underhood temperature. We highly recommend this option, especially for catted downpipes.

Main Features:

  • Significant power gain
  • Faster spool up and better throttle response
  • Increasing the life of the turbos 
  • Reducing under hood temperature
  • Adds a very nice tone to the exhaust
  • 100% bolt-on installation
  • 100% TIG welded and back purged
  • Highest quality 1.6mm wall 304 stainless steel
  • OEM-spec V-band flange
  • All brackets and mounts as on OEM unit


Removing of factory catalytic converters will trigger a сheck engine light (can be eliminated with optionally O2 sensors restrictors). Firmware update recommended to get maximum performance gains. 

This product is not designed to meet any emissions standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions controlled vehicles in any country/jurisdiction.