KYOSTAR Valved Sport Catback Exhaust System for 2019-2025 BMW G20 G21 M340i G22 G23 M440i B58 3.0T

KYOSTAR Valved Sport Catback Exhaust System for 2019-2025 BMW G20 G21 M340i G22 G23 M440i B58 3.0T

The KYOSTAR Valved Sport Catback Exhaust System is designed for BMW G20/G21 M340i and G22/G23 M440i models equipped with the B58 3.0T Twin Turbo engine. This complete catback exhaust upgrade improves exhaust flow efficiency, reduces exhaust restriction, and enhances the turbocharged exhaust character while maintaining adjustable sound control through an integrated valve system.

Constructed from high-quality stainless steel with precision fabrication, this valved catback system delivers excellent durability, improved exhaust pulse flow, and a more aggressive exhaust tone. The electronically controlled valve design allows drivers to switch between a refined daily driving sound and a louder sport exhaust experience, making it suitable for both street and performance applications.

Features

• Performance Benefit: Improves exhaust flow and reduces backpressure, helping the B58 turbocharged engine achieve improved response and exhaust efficiency.

• Material Advantage: Manufactured from durable stainless steel for excellent corrosion resistance, heat protection, and long-term reliability under performance driving conditions.

• Installation Advantage: Designed as a direct-fit catback system using factory mounting locations for easier installation and proper alignment.

• Design Advantage: Valved exhaust technology provides adjustable exhaust tone control, allowing quiet cruising and aggressive performance sound when desired.

• Compatibility Advantage: Specifically engineered for BMW G20/G21 M340i and G22/G23 M440i models equipped with the B58 3.0T engine.

Fitment

• 2019-2025 BMW G20 M340i B58 3.0T

• 2021-2025 BMW G21 M340i Touring B58 3.0T

• 2021-2025 BMW G22 M440i Coupe B58 3.0T

• 2021-2025 BMW G23 M440i Convertible B58 3.0T

Notes

Compatible Vehicle: Designed specifically for BMW G20/G21 M340i and G22/G23 M440i models equipped with the B58 Gen2 3.0T Twin Turbo engine.

Incompatible Vehicle: Not compatible with BMW models using different chassis platforms, engine configurations, or exhaust layouts.

Verify Vehicle: Please confirm your vehicle Year, Chassis Code, Engine Configuration, and factory exhaust system before ordering.

Installation: Professional installation is recommended to ensure correct exhaust alignment, valve operation, and proper sealing of all connections.

Product Details

FAQ

Q1: Will this fit my vehicle?

The KYOSTAR Valved Sport Catback Exhaust System fits BMW G20/G21 M340i and G22/G23 M440i models equipped with the Gen2 B58TU 3.0T engine. Please confirm your vehicle Year, Chassis, and Engine before purchase.

Q2: Does installation require modification?

This exhaust system is designed for direct installation using factory mounting points. Professional installation is recommended for proper fitment, valve operation, and exhaust alignment.

Q3: Will this require ECU tuning?

A catback exhaust system is installed after the catalytic converter and typically does not affect engine warning lights or ECU calibration. Exhaust sound and performance characteristics may vary depending on other vehicle modifications.

Q4: What performance benefits does this provide?

The KYOSTAR valved catback exhaust improves exhaust flow, enhances turbocharged engine sound, provides adjustable exhaust volume control, and delivers a more engaging driving experience for BMW B58 performance applications.

Professional installation is recommended.

KYOSTAR products are quality inspected before shipment. Please contact our support team for installation assistance or after-sales support.