Mercedes Benz W205, C43 AMG Titanium Valved Catback Exhaust

The definitive exhaust for the W205 C43. A full titanium valved catback built from aerospace-grade titanium, hand heat-anodised, with an X-pipe crossover, twin valved mufflers and the wireless remote kit supplied.

The factory C43 system is heavy and deliberately restrained - it hides one of the better-sounding engines AMG has built. Going titanium rather than stainless changes two things at once: the system is dramatically lighter, and the note is sharper and higher-pitched in a way stainless steel simply cannot reproduce over a twin-turbo V6.

The X-pipe crossover is what gives this system its character. Balancing pulses between the two banks before the mufflers deepens the tone and smooths the delivery, which is why it sounds fuller than a straight dual system at the same volume.

Mandrel-bent titanium throughout with precision TIG welding, supplied complete with the valve assembly, remote kit and all hardware.

Key Features

Full Titanium Construction

Aerospace-grade titanium through the pipework, muffler bodies and tips, 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.

X-Pipe Crossover

Balances exhaust pulses between the two banks of the V6, deepening the tone and evening out the delivery through the mid range.

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.

Precision TIG Welded

Clean, strong welds built to handle exhaust temperature cycling and hard driving.

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:

Blue - the finish shown in our photography. Deep blue through the piping with gold and violet heat banding across the bends and weld lines.

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

Gold - warm bronze and gold dominant, with blue and violet coming through at the bends and weld lines.

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 M276

Sound Characteristics

Valves Closed

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

Valves Open

Sharp, high-pitched titanium tone over the M276 V6
Increased exhaust volume
Stronger overrun crackle and turbo acoustics
More engaging driving experience throughout the rev range

Vehicle Fitment

Mercedes-AMG C43 (W205, 2016-2021)

3.0L Twin-Turbocharged M276 V6 Engine

This system is for the C43. The E43 uses a different catback - see our W213 E43 listing.

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.