For the latest M340i (2024–) and M440i (2025–) with mild-hybrid B58 and xDrive. Stainless steel downpipe without catalytic converter, with a flex pipe that damps vibration and relieves the joints. 148 mm connection on the engine side and 80 mm on the exhaust side.
Why TC
- Made for mild-hybrid B58 – factory connections, no modifications
- Flex pipe for a quiet, durable joint
- Stainless steel
Technical data
- Material: stainless steel
- Flex pipe
- Engine connection: 148 mm, exhaust: 80 mm
- 1 connection for sensor
- Weight: 4.4 kg
- Intended for motorsport use; no type approval for road traffic.
Fits vehicles
- BMW 3 (G20/G21) M340i mild hybrid xDrive, 2024
- BMW 4 (G22) M440i mild hybrid xDrive, 2025
Delivery time: 6–8 working days. Please check fitment using the vehicle selector before ordering; if in doubt, write to us.

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