Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
  • Load image into Gallery viewer, Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
  • Load image into Gallery viewer, Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
  • Load image into Gallery viewer, Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
  • Load image into Gallery viewer, Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016
  • Load image into Gallery viewer, Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016

Wagner Tuning BMW N20 Catless Downpipe SS304 - F-Series 125i 220i 228i 320i 328i 420i 428i (F20 F21 F22 F23 F30 F31 F34 F32 F33, 2012+) OEM Fit Decat Turbo Downpipe - Replaces 18327645666 | 500001016

Regular price
£362.70
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£362.70
Regular price
£390.00
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Wagner BMW N20 Catless Downpipe - 220i, 228i, 320i, 328i, 420i, 428i

Transform your BMW N20 with the Wagner catless downpipe. This high quality stainless steel 1.4301 SS304 turbo downpipe is CAD designed without the main catalyst to reduce back pressure, lower thermal load on the turbocharger and unlock noticeably more torque and power. It is a direct OEM replacement for a perfect fit on F series BMW 220i, 228i, 320i, 328i, 420i and 428i models, including selected xDrive variants.

Key features

  • High quality stainless steel 1.4301 SS304 construction
  • CAD designed without main catalyst for maximum flow
  • 2 lambda probe connections O2 sensor ports
  • 100 percent perfect fit replacing OEM hardware
  • Less thermal load on the turbocharger
  • Significantly more torque and power from reduced back pressure
  • Connection diameter 105 mm
  • Exhaust diameter 76 mm

We have fitted this Wagner N20 catless downpipe on our own cars and customer builds and the fit, finish and results have been excellent. If you want a BMW N20 performance exhaust upgrade that delivers flow, sound and response, this is the go to decat downpipe for 220i, 228i, 320i, 328i, 420i and 428i owners.

Vehicle compatibility

  • BMW 125i F20 F21
  • BMW 220i F22 F23
  • BMW 228i F22 F23
  • BMW 320i x F30 F31 F34
  • BMW 328i x F30 F31 F34
  • BMW 420i F32 F33
  • BMW 428i x F32 F33

Replacement for OEM BMW Part Number 18327645666 from year of construction 10/2012+

Part number

Wagner Part Number: 500001016

Fitting and installation

Professional installation recommended. For fitting by Nforcd in Warwickshire, request a quote at Sales@nforcd.com.

Compatibility check

To ensure the part fits your vehicle, we run a compatibility check prior to dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout.

Important notes on legality and ECU

  • Off road use only unless a catalyst is fitted in the exhaust mid section
  • Removal of all catalytic converters will almost invariably make your vehicle illegal for use on a public road
  • ECU will need to be coded to avoid engine management light errors

Manufacturer and warranty

Manufactured by Wagner. Supplied with a 2 year manufacturer warranty.

Search friendly terms

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