Mercedes Benz X253/C253, GLC63/GLC63s AMG Titanium Valved Catback Exhaust

The definitive exhaust for the GLC63 and GLC63 S. A full titanium valved catback in hand heat-anodised titanium, with twin mandrel-bent pipes, a centre resonator, rear valve assemblies and the wireless remote kit supplied.

The factory GLC63 system is heavy and deliberately restrained for a family SUV, which is a strange fit for the hand-built four-litre V8 underneath it. Going titanium rather than stainless changes two things at once: the system is dramatically lighter, and the note is sharper and more exotic in a way stainless steel cannot reproduce.

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 pipework, resonator and outlets, for exceptional heat tolerance, corrosion resistance and a significant weight saving over both the factory system and a stainless replacement.

Independent Varex Valve System

Rather than reusing the restricted factory valves, this system operates its own dedicated valve assembly with complete travel in both directions. Sealed when closed for a quieter OEM+ driving experience, and fully unobstructed when open for a fully aggressive exhaust tone.

Wireless Remote Kit Supplied

Valve operation is handled entirely by the supplied remote, so the volume is yours to choose rather than the car's. The system does not connect to the factory valve motors.

True Dual Design

Each bank of the V8 keeps its own mandrel-bent pipe the whole way back. Where the two pipes cross under the floor they are braced together, which keeps the system rigid over rough roads.

Signature Titanium Exhaust Note

Sharper, higher-pitched and more exotic than stainless, with cleaner overrun, stronger crackles and a distinctly motorsport tone at high RPM.

SUV and Coupe Fitment

Built to the correct routing for each body, selected at checkout.

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 piping 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 body.

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 system
Reduced restriction through the whole rear section
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, exotic titanium tone over the M177 V8
Increased exhaust volume
Stronger overrun crackle and turbo acoustics
More engaging driving experience throughout the rev range

SUV or Coupe?

The GLC63 was sold as an SUV (X253) and as a Coupe (C253). The two bodies have different rear floors and hanger positions, so the systems are not interchangeable.

Select the body that matches your car at checkout. If you are unsure, our team will confirm it against your VIN before dispatch.

Vehicle Fitment

Mercedes-AMG GLC63 (X253 SUV and C253 Coupe, 2018-2022)
Mercedes-AMG GLC63 S (X253 SUV and C253 Coupe, 2018-2022)

4.0L Twin-Turbocharged M177 V8 Engine

Available for both bodies - select yours at checkout. The GLC63 and GLC63 S take the same system.

Please Note

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.