
Akrapovič Downpipe w/ Cat (SS) – BMW M140i / M240i / 340i / 440i (F20 / F21 / F22 / F23 / F30 / F31 / F32 / F33 / F36)
Akrapovič Downpipe w/ Cat (SS) – BMW M140i / M240i / 340i / 440i (F20 / F21 / F22 / F23 / F30 / F31 / F32 / F33 / F36) is a vehicle-specific Akrapovič upgrade for BMW M140i / M240i / 340i / 440i (F20 / F21 / F22 / F23 / F30 / F31 / F32 / F33 / F36). This Akrapovič downpipe upgrade for BMW M140i / M240i / 340i / 440i (F20 / F21 / F22 / F23 / F30 / F31 / F32 / F33 / F36) targets the high-restriction section closest to the engine/turbochargers. The design is intended to improve exhaust-gas flow, reduce back pressure and increase tuning potential while retaining the exact catalyst configuration stated for this part number.
Key features
- High-quality stainless-steel construction
- Akrapovič published power change: +17.9 HP / 5900 rpm
- Akrapovič published torque change: +12.7 lb-ft / 4000 rpm
- Published weight change: -0.4 kg
- Vehicle-specific exhaust geometry developed for improved flow and sound
Technical data
- Power: +17.9 HP / 5900 rpm
- Torque: +12.7 lb-ft / 4000 rpm
- Weight change: -0.4 kg
- Indicative fitting time: 90 min
BMW fitment
- BMW M140i (F20, F21) – OPF/GPF 2018 – 2019
- BMW M240i (F22, F23) – OPF/GPF 2018 – 2021
- BMW 340i (F30, F31) – OPF/GPF 2018 – 2019
- BMW 440i (F32, F33, F36) – OPF/GPF 2018 – 2020
Fitment & approval notes
- An ECU remap is mandatory with this configuration to avoid potential check-engine warnings.
Road-use note
Akrapovič identifies this configuration as not meeting the applicable emissions compliance requirements for street/highway use. It is intended for closed-course, motorsport or off-road use only.
Fitting at Swift Performance
Professional fitting is available at Swift Performance.

