OAO Valved Cat-Back Exhaust System for BMW G30 540i 3.0T B58 T304 Stainless Steel Performance Exhaust

Unleash the True Sound of the BMW B58 Engine

Designed specifically for the BMW G30 540i equipped with the award-winning B58 3.0L turbocharged inline-six engine, the OAO Valved Cat-Back Exhaust System is engineered to maximize exhaust flow, reduce backpressure, and deliver the perfect balance of luxury refinement and motorsport-inspired performance.

Featuring an electronically controlled valve system, the OAO Cat-Back Exhaust allows you to switch effortlessly between a quiet, comfortable cruising mode and an aggressive performance exhaust note at the touch of a button.

Manufactured from premium T304 stainless steel with precision TIG welding and mandrel-bent tubing, every OAO exhaust system is built for exceptional durability, superior corrosion resistance, and OEM-quality fitment.

Key Features

✓ Designed for BMW G30 540i

✓ B58 3.0L Turbocharged Inline-6 Engine

✓ Electronic Valved Cat-Back Exhaust System

✓ Premium T304 Stainless Steel Construction

✓ High-Flow Performance Exhaust Design

✓ Precision TIG Welded

✓ Mandrel-Bent Tubing

✓ Reduced Exhaust Backpressure

✓ Improved Exhaust Flow Efficiency

✓ Enhanced Turbocharger Sound

✓ Lightweight Performance Construction

✓ OEM-Level Direct Bolt-On Fitment

Intelligent Valved Exhaust System

Comfort Mode

With the valves closed, the exhaust maintains a refined and quiet sound profile, making it ideal for daily commuting and long-distance driving.

Perfect for:

• Daily Driving

• Highway Cruising

• Residential Areas

• Business Travel

• Long-Distance Comfort

• Reduced Cabin Drone

Sport Mode

Open the valves and unleash the full personality of the BMW B58 engine.

Benefits include:

• Louder Exhaust Volume

• Deeper Inline-6 Tone

• Enhanced Turbo Spool Sound

• Sharper Acceleration Acoustics

• More Aggressive Downshift Pops (ECU Dependent)

• Increased Driver Engagement

Performance Benefits

The OAO Valved Cat-Back Exhaust System is engineered to improve exhaust efficiency while enhancing the driving experience.

Potential benefits may include:

• Improved Exhaust Flow

• Reduced Exhaust Backpressure

• Sharper Throttle Response

• Faster Turbo Response

• Enhanced Mid-Range Torque

• Improved High-RPM Performance

• Better Compatibility with Performance Downpipes and ECU Tuning

Actual performance gains may vary depending on supporting modifications and ECU calibration.

Precision Performance Engineering

Developed using advanced exhaust flow simulation and motorsport-inspired engineering, every OAO exhaust system is optimized for performance and fitment.

Engineering highlights include:

• Large-Diameter Mandrel-Bent Tubing

• Straight-Through Performance Mufflers

• Precision Valve Integration

• Optimized Exhaust Gas Velocity

• Reduced Flow Turbulence

• Lightweight Construction

• Perfect Compatibility with Factory Mounting Points

Designed for enthusiasts seeking both daily comfort and high-performance driving.

Signature B58 Exhaust Sound

The OAO Valved Cat-Back Exhaust enhances the smooth and powerful character of BMW's B58 engine.

Drivers may experience:

• Deep and Refined Cold Start

• Rich Turbocharged Inline-6 Tone

• Enhanced Turbo Spool Acoustics

• Aggressive Sport Mode Sound

• Sharper Gear Change Acoustics

• Powerful High-RPM Exhaust Note

• Comfortable Cruising with Minimal Drone

Whether cruising on the highway or accelerating through mountain roads, the OAO exhaust delivers an authentic BMW performance sound.

Premium T304 Stainless Steel Construction

Manufactured from motorsport-grade T304 stainless steel to provide exceptional durability and long-term reliability.

Advantages include:

• Excellent Corrosion Resistance

• Superior Heat Resistance

• High Structural Strength

• Long Service Life

• Precision CNC-Machined Flanges

• Fully TIG Welded Construction

Every OAO exhaust system is thoroughly inspected before shipment to ensure consistent quality and precise fitment.

Vehicle Fitment

Compatible with:

• BMW 540i (G30 Sedan)

• BMW 540i xDrive (G30 Sedan)

Engine Platform

• B58 3.0L Turbocharged Inline-6

Model Years

• 2017

• 2018

• 2019

• 2020

• 2021

• 2022

• 2023

Please verify your vehicle model year, engine, and factory exhaust configuration before ordering.

Package Includes

• OAO Valved Cat-Back Exhaust System

• Electronic Valve Control Module

• Wireless Remote Controllers

• Installation Hardware Kit

• Protective Packaging

Installation

Direct bolt-on installation utilizing factory mounting locations.

No cutting or welding required.

Professional installation is highly recommended to ensure optimal fitment and performance.

Optional Upgrades

Compatible with:

• OAO High-Flow Downpipes

• OAO Performance Mid Pipes

• Carbon Fiber Exhaust Tips

• Titanium Burnt Blue Exhaust Tips

• OEM Valve Integration (Optional on Select Models)

Important Notes

For off-road or motorsport use where permitted by local regulations.

Please verify your vehicle specifications before purchasing.

Why Choose OAO Performance

OAO specializes in premium exhaust systems for BMW M, Mercedes-AMG, Audi RS, Porsche, Nissan GT-R, Ferrari, Lamborghini, Aston Martin, and other world-class performance vehicles.

Every OAO exhaust system combines precision engineering, premium materials, and extensive vehicle testing to deliver OEM-quality fitment, exceptional durability, and an unforgettable driving experience.

Upgrade your BMW G30 540i with the OAO Valved Cat-Back Exhaust System and experience deeper exhaust tone, faster turbo response, and the refined performance sound that only OAO can deliver.