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

Product Overview

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, reduces 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 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.

Product Highlights

• 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.

• Installation Advantage: Designed as a direct replacement catback system using factory mounting locations for easier installation.

• Design Advantage: Valved exhaust technology provides adjustable exhaust tone, 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.

Vehicle 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

Fitment Notes

Please verify your vehicle year, chassis code, and engine configuration before purchase. This valved catback exhaust system is designed specifically for BMW B58 Gen2 3.0T applications.

Valve operation may depend on the vehicle's original exhaust valve control system or included valve controller configuration. Please confirm installation requirements before 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?

This valved catback exhaust system fits BMW G20/G21 M340i and G22/G23 M440i models equipped with the Gen2 B58TU 3.0T engine. Please confirm your chassis and engine before ordering.

Q2: Does installation require modification?

The system is designed for direct installation using factory mounting points. Professional installation is recommended for proper fitment and valve operation.

Q3: Will this affect engine warning lights or 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 modifications.

Warranty & Shipping

Every KYOSTAR exhaust system is quality inspected before shipment to ensure consistent manufacturing standards. Products are securely packaged to prevent transportation damage. Our customer support team is available for installation assistance and after-sales support.