4″ high-flow catalytic converter by CTS Turbo for BMW N20 four-cylinder engines in F-series models. Removing the factory catalytic converter improves exhaust gas flow, which can increase engine power and sound. Faster turbocharger response and reduced back pressure provide a more responsive and sportier driving experience.
Suitable Bootmod3 software tuning is required to remove the check engine light (CEL) and ensure correct operation.
Features
- 4″ design
- CNC-machined flange and bracket for direct installation
- Fully TIG-welded stainless steel construction
- Power increase of 25–35 hp with Stage 2 tuning, depending on the fuel octane rating
- More pronounced sound
- Weight: 7.71 kg
The product is intended exclusively for off-road and racing use. It is not suitable for N26 engines. Check the engine on the label under the bonnet: the N20 engine is marked ULEV, while the N26 engine is marked SULEV.
Check the downpipe flange on the vehicle before installation.
Software tuning is required to prevent the check engine light from appearing.
Suitable for: BMW 2 I (F22/F23/F45/F46/F87), BMW 3 VI (F30/F31/F34/F80), BMW 4 I (F32/F33/F36/F82/F83), BMW 5 VI (F10/F11).
Approval
This part has no TÜV certification (ABE, TTG or Teilegutachten).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| BMW 228i | — | 2014–2016 | — |
| BMW 328i | — | 2011–2016 | — |
| BMW 428i | — | 2014–2016 | — |
| BMW 528i | — | 2011–2016 | — |
Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.
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