CTS Turbo 4″ Catless Downpipe for BMW N20 4-cylinder (2012-2017) F20-F21-F22-F30-F32-F36

Code: CTS-EXH-DP-0020


In Stock

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Included Warranty

12 Months
All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.


CTS Turbo is proud to announce a catless downpipe for F-series BWM 4 cylinder N20 engines.

By removing the factory catalytic converter, you will free up exhaust flow and thus increase power and sound of the engine. Faster turbo spool and less backpressure means the car will feel more responsive and more fun to drive.

Proper tuning by Bootmod3 must be used to remove CEL and ensure proper operation.


  • CNC machined flange and direct-fit bracket
  • Fully TIG welded stainless steel construction
  • 25-35HP increase in power with stage 2 tune (octane dependent)
  • Aggressive sound

This part is for off-road race use only! Not for N26 engines. Check the sticker under the hood; you have N20 engine it will say ULEV.  If it is an N26 engine, it will say SULEV.


  • 2012 – 2017 F30 BMW 320i & 320xi N20
  • 2012 – 2017 F30 BMW 328i & 328xi N20
  • 2013 – 2017 F32/F33 BMW 420i & 420xi N20
  • 2013 – 2017 F32/F33 BMW 428i & 428xi N20
  • 2013 – 2017 F36 BMW 428i & 428xi Gran Coupe N20
  • 2012 – 2017 F20/F21 BMW 128i & 128xi N20
  • 2013 – 2017 F22 BMW 220i & 220xi N20
  • 2013 – 2017 F22 BMW 228i & 228xi N20

Stage 2 software is required to avoid check engine light.

Additional information

Weight 15 lbs
Dimensions 30 × 17 × 9 in



Make Model Year Generation
Make Model Year Generation
BMW 228i 2014 - 2016 F22
BMW 328i 2011 - 2016 F30
BMW 428i 2014 - 2016 F32
BMW 528i 2011 - 2016 F10