KYOSTAR 76mm Valved Catback Exhaust System w/ OPF for 2021+ BMW G80 M3 G82 G83 M4 2022+ G81 M3 S58 3.0T

KYOSTAR 76mm Valved Catback Exhaust System w/ OPF for BMW S58 3.0T

The KYOSTAR 76mm Valved Catback Exhaust System is designed specifically for OPF-equipped BMW S58 models, providing improved exhaust flow while maintaining full compatibility with factory OPF emissions equipment. The electronically controlled valve system allows you to switch between a refined daily driving experience and a more aggressive exhaust note under spirited driving conditions.

Constructed from premium T304 stainless steel with precision mandrel-bent 76mm tubing and TIG-welded construction, this catback system reduces exhaust restriction, improves exhaust pulse scavenging, and delivers enhanced throttle response. The direct bolt-on design ensures excellent fitment with factory mounting points while maintaining OEM-level reliability and durability.

Fitment

• 2021+ BMW G80 M3

• 2021+ BMW G80 M3 Competition

• 2021+ BMW G80 M3 Competition xDrive

• 2022+ BMW G81 M3 Touring Competition xDrive

• 2021+ BMW G82 M4 Coupe

• 2021+ BMW G82 M4 Competition

• 2021+ BMW G82 M4 Competition xDrive

• 2021+ BMW G83 M4 Convertible

• 2021+ BMW G83 M4 Competition xDrive

Note

• Designed for BMW S58 3.0L Twin-Turbo models equipped with the factory OPF/GPF exhaust system.

• Not compatible with non-OPF versions unless otherwise specified.

• Not compatible with S55, B58, N55, or other BMW engine platforms.

• Please verify your production date, chassis code, factory exhaust configuration, and valve connector before ordering.

Fitment Note

European and international BMW models may use different OPF/GPF configurations depending on market and production date. Please compare your original exhaust layout, valve actuators, and connection points before installation. Vehicles with previous aftermarket exhaust modifications may require additional hardware.

Professional installation is recommended. Proper installation and valve calibration ensure correct operation, leak-free sealing, and optimal exhaust performance.

Product Details