Mercedes Benz W463A G63 Titanium Valved Exhaust

The exhaust the G63 deserves. A titanium valved rear system in hand heat-anodised titanium, with a valved muffler on each side, the signature quad tips and the wireless remote kit supplied.

The G63 hides a hand-built four-litre V8 behind a factory system built to keep a luxury off-roader quiet. Going titanium rather than stainless changes two things at once: the rear section is dramatically lighter, and the note is sharper and more exotic in a way stainless steel cannot reproduce over this engine.

Mandrel-bent titanium throughout with precision TIG welding, hand heat-anodised in your choice of Gold, Blue or Purple. Supplied complete with the valve assemblies, remote kit and all hardware.

Key Features

Full Titanium Construction

Aerospace-grade titanium through the muffler bodies and pipework, for exceptional heat tolerance, corrosion resistance and a significant weight saving over the factory system.

Electronic Valve Control

Each muffler carries its own valve assembly with full travel in both directions. Closed for a quieter OEM+ drive, fully open for the hard side-exit bark the G63 is known for.

Wireless Remote Kit Supplied

Valve operation is handled by the supplied remote, so the volume is yours to choose rather than the car's.

Signature Quad Tips

Three-outlet side tips per side in a black finish, mounted in the factory positions so the G63 keeps its unmistakable side-exit look.

Signature Titanium Exhaust Note

Sharper, harder and more exotic than stainless, with stronger overrun crackle and a genuine motorsport edge at high RPM.

Direct Bolt-On Fitment

Fits at the factory mounting points and hangers. No cutting and no fabrication.

Choose Your Titanium Finish

The colour on a titanium exhaust is produced by heat, not by paint or coating, and it runs through the pipework and muffler bodies as one continuous finish. Three options are available:

Gold - the finish shown in our photography. Warm bronze and gold through the bodies with straw and violet heat banding across the bends and weld lines.

Blue - deep blue through the piping with gold and violet banding at the bends and weld lines.

Purple - rich purple and magenta across the system with bronze shading over the muffler bodies.

Because the finish is created by heat, no two systems are identical and the banding will vary slightly from the photographs. That variation is characteristic of anodised titanium rather than a fault.

Performance Benefits

A sharper, louder titanium note with the valves open
Near-standard volume with the valves closed
Significant weight reduction over the factory rear section
Reduced restriction through the rear of the system
Sharper throttle response
A strong foundation for a tuned M177

Sound Characteristics

Valves Closed

Refined and comfortable cruising tone
Minimal cabin drone
Suited to everyday driving and early starts

Valves Open

Sharp, hard-edged V8 bark from the side exits
Increased exhaust volume
Stronger overrun crackle and turbo acoustics
Aggressive cold starts

Vehicle Fitment

Mercedes-AMG G63 (W463A, 2018 onwards)

4.0L Twin-Turbocharged M177 V8 Engine

Supplied as a left and right pair with the quad tips, valve assemblies, hangers and hardware.

Please Note

This is the rear muffler section. The mid pipes and downpipes are not included, and the factory items are retained unless you are fitting ours.

Professional installation is recommended. Exhaust sound will vary depending on whether the factory or aftermarket downpipes are fitted.

Check your local road rules before fitting. Exhaust noise requirements vary by state and a vehicle must remain compliant for road use.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles - including Volkswagen GTI & R models, Audi S/RS platforms, and Mercedes-AMG applications. Every product we offer is carefully selected for its quality, fitment, and real-world performance - tested by enthusiasts, for enthusiasts.