KYOSTAR Valved Titanium Catback Exhaust System for 2021+ BMW G80 M3 G82 G83 M4 2022+ G81 M3 S58 3.0T

KYOSTAR Valved Titanium Catback Exhaust System for BMW S58 3.0T

The KYOSTAR Valved Titanium Catback Exhaust System is engineered for BMW S58-powered M models, combining lightweight titanium construction with a precision valve-controlled design. The system delivers an aggressive exhaust tone under acceleration while maintaining a refined, comfortable sound during daily driving through electronically controlled exhaust valves.

Manufactured from premium Grade 5 titanium with precision TIG welding, this catback system significantly reduces weight compared to the factory exhaust while improving exhaust flow and minimizing backpressure. The optimized piping layout enhances exhaust pulse scavenging for a sharper throttle response and a more engaging driving experience without sacrificing fitment or reliability.

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

• Fits BMW S58 3.0L Twin-Turbo Inline-6 engine only.

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

• Please verify your vehicle model, production year, factory exhaust configuration, and valve connection before purchasing.

• Compatible with factory electronic exhaust valve control.

Fitment Note

Vehicle specifications may vary depending on production date, regional emissions equipment (OPF/GPF), and factory exhaust configuration. Previous aftermarket exhaust modifications may require additional adjustments. Please inspect the original exhaust layout before installation.

Professional installation is recommended. Proper installation and valve calibration are essential to ensure leak-free operation, optimal valve function, and maximum exhaust performance.

Product Details