BMW M140i F20/F21 LCI B58 catless turbo downpipe (3.5in)

Cobra Sport 3.5in (88.9mm) mandrel-bent stainless steel de-cat turbo downpipe for the BMW M140i F20 and F21 LCI with B58 engine - 2015 to 2019.

Stage 2 fast-road or track-day upgrade: removes factory catalyst, cuts back pressure, sharpens throttle response and speeds turbo spool. Requires ECU remap to run cleanly - no EML lights, no limp mode.

• Direct-fit replacement; includes gaskets and hardware
• Aggressive, deeper exhaust note - not subtle
• For off-road and motorsport use only; not road legal in the UK