CTS Turbo 4″ Race Downpipe for BMW N20 4-Cylinder (2012-2017)
The CTS Turbo Catless Downpipe for BMW F-Series N20 engines increases power, improves turbo response, and delivers an aggressive exhaust note by eliminating the factory catalytic converter—ideal for off-road use with proper tuning via Bootmod3.
- SKU
- CTS-EXH-DP-0020
- Category
- Downpipe, Exhaust Systems
- Fits
- 520D, 228i, 328i, 428i, 528i, BMW, F10, F22, F30, F32, F10, F22
F20-F21-F22-F30-F32-F36
Unlock performance and sound with the CTS Turbo Catless Downpipe for BMW F-series models equipped with the N20 4-cylinder engine. Designed for maximum flow, this downpipe eliminates the restrictive factory catalytic converter, delivering noticeable gains in turbo response, throttle feel, and overall power.
Expect an aggressive exhaust tone and faster spool, especially when paired with a proper Stage 2 tune, which is required to disable the check engine light (CEL) and ensure correct engine operation.
Key Features:
-CNC-machined flange and OEM-style bracket for perfect fitment-Fully TIG-welded, high-grade stainless steel construction-Gains of 25–35HP with Stage 2 tuning (fuel quality dependent)-Enhanced turbo sound and reduced backpressure-For off-road and racing use only – not compatible with N26 engines
Compatibility Note: Check the under-hood emissions label. If it says ULEV, you have an N20 engine. If it says SULEV, your engine is N26 and not compatible.
