X3M X4M Valve Controller – BMW G01/G02 Exhaust Control by ExValve ASR

Full Exhaust Sound Control for Your BMW S58 Powerhouse

The BMW X3M and X4M bring aggressive S58 twin-turbo performance to the SUV world. However, despite their power, the stock exhaust valves operate based on factory presets — not your personal preference. That’s where the X3M X4M Valve Controller by ExValve (ASR) comes in, offering direct control over your vehicle’s exhaust sound.

Whether you’re rolling through town or ripping through twisties, you’ll always have the power to choose your volume and tone.

Engineered for G01/G02 X3M and X4M Models (2019+)

Designed specifically for BMW’s G01 X3M and G02 X4M, this system integrates flawlessly with the factory valved exhaust system — including Competition trims. It connects directly to the exhaust valve motors via OEM-style connectors.

Fitment:

• BMW X3M G01 (2019–present)

• BMW X4M G02 (2019–present)

• X3M/X4M Competition (S58 engine)

• Compatible with factory and aftermarket valved exhausts

For more performance parts, explore our BMW S58 Performance Upgrades.

Three Valve Modes at Your Command

The ExValve system lets you toggle exhaust valve behavior in real time using the supplied wireless remote. Because it gives you full override capability, you’re no longer locked into factory ECU behavior.

• Open Mode: Valves stay open at all times for maximum aggression

• Close Mode: Valves remain shut — ideal for early starts or city driving

• Auto Mode: Returns control to BMW’s factory programming

You can now tailor your exhaust to suit any drive, any mood, any road — all with one click.

Plug & Play Installation with No Coding Required

Thanks to plug-and-play engineering, installing the ExValve controller is quick, clean, and reversible. Because no coding or flashing is needed, you can install this at home with minimal tools.

Installation Steps:

1. Raise vehicle and locate valve motor harness

2. Disconnect stock plugs

3. Insert ExValve connectors inline

4. Mount controller securely

5. Test modes using the remote

Since there’s no interference with the DME or OBD2 systems, you can revert to stock anytime — no permanent changes required.

Zero CELs, No Errors, OEM-Safe

Unlike low-cost modules that cause fault codes or interfere with drive modes, ExValve is engineered to BMW standards. The controller simulates OEM valve behavior, avoiding warning lights or system faults.

System-Safe Design:

• No CELs or fault codes

• Preserves factory drive modes (Comfort, Sport, Sport+)

• Compatible with dealership servicing

• Safe for warranty and lease vehicles

That’s why this module is preferred by professional tuners and BMW specialists alike.

Fully Compatible with Aftermarket Exhaust Systems

Planning to go beyond stock? No problem. The ExValve controller is fully compatible with performance exhausts that retain OEM-style valve motors.

• Akrapovič Slip-On Line for X3M/X4M

• Remus Valved Exhaust System for X3M

• Milltek Sport X3M Competition Exhaust

Regardless of your upgrade path, ExValve ensures full control and seamless integration.

Wireless Remote Operation – Instant Sound Switching

The compact RF remote offers intuitive access to all three modes. Since it doesn’t rely on Bluetooth or app pairing, it’s fast, reliable, and works from outside the vehicle.

Whether you keep it in your pocket, glovebox, or console, it gives you immediate exhaust control without touching a screen or scrolling through menus.

Built for High Temperatures and Longevity

Since the S58 engine bay generates intense heat, ExValve is built with durable, heat-resistant materials. The sealed control unit is water- and shock-resistant, and all wires are shielded for long-term performance in all conditions.

Designed To Endure:

• Road grime and moisture

• Undercar heat and vibration

• High RPM and track use

• Long-term daily driving

Because of its robust build, this system is ideal for aggressive street setups and track-prepped builds.

Why Choose ExValve by ASR?

ExValve by ASR isn’t just a module — it’s a complete exhaust control solution trusted by enthusiasts across BMW communities worldwide. While other kits are cheaper, few match its reliability, ease of use, or OEM-quality construction.

What Sets It Apart:

• 100% plug-and-play

• 3-mode manual control

• Works with OEM and aftermarket systems

• No check engine lights or faults

• Professionally tested and proven

Pair it with our X3M Carbon Fibre Diffuser or X4M Side Skirt Aero Kit for a cohesive performance build.