KYOSTAR Catless Downpipe for 2024+ BMW G20 M340i G22 M440i Gen3 B58TU2 3.0T

KYOSTAR Catless Downpipe for 2024+ BMW G20 M340i G22 M440i Gen3 B58TU2 3.0T

The KYOSTAR Catless Downpipe is designed for 2024+ BMW G20 M340i and G22 M440i models equipped with the latest Gen3 B58TU2 3.0T turbocharged inline-six engine. Featuring a high-flow catless design with optimized exhaust routing, this downpipe reduces factory exhaust restriction, improves exhaust flow efficiency, and helps enhance turbo response under increased boost conditions.

Manufactured from durable stainless steel with precision welding and factory-style mounting points, this performance downpipe improves exhaust pulse flow while delivering a more aggressive exhaust tone. Designed for modified BMW B58TU2 applications, ECU tuning is recommended after installation to properly manage O2 sensor readings and optimize engine performance.

Fitment

• 2024+ BMW G20 M340i Gen3 B58TU2 3.0T

• 2024+ BMW G22 M440i Gen3 B58TU2 3.0T

Note:

Compatible engine: Gen3 B58TU2 3.0T Turbo L6 engine applications only.
Incompatible engine: Not compatible with Gen1 B58, Gen2 B58TU, N55, S55, S58, or other engine platforms.
Verify chassis: Confirm your BMW G20/G22 chassis compatibility before purchase.
Verify year: Check vehicle production year and factory exhaust configuration.
Verify connection: Confirm turbo outlet connection, OPF/GPF configuration, O2 sensor locations, and mounting points.

Fitment Note:
Vehicle specifications may vary by production date and market. European and North American models may use different OPF/GPF systems, sensor locations, and factory emissions equipment. Previous exhaust modifications may affect installation compatibility.

O2 Sensor Reminder:
Removing the factory catalytic converter may trigger a check engine light. ECU tuning or proper calibration may be required after installation.

ECU Tune Reminder:
A professional ECU tune is recommended to maximize performance gains and ensure proper engine operation.

Off-road Notice:
This catless downpipe is intended for off-road and racing applications only where permitted. It may not comply with emissions regulations in certain areas.

Professional installation is recommended.

Product Details