Mercedes Benz W177, A35 AMG Stainless Steel Valved Catback Exhaust

Give the A35 the voice the badge deserves with this Stainless Steel Valved Catback Exhaust for the Mercedes-AMG W177 A35 - a full rear-section replacement with electronically controlled valves and twin tips.

The factory A35 exhaust is deliberately restrained; it is the quiet one of the W177 range and it sounds it. This system replaces everything from the mid section back with mandrel-bent stainless tubing and a valved rear muffler, so the car stays civil at part throttle and turns genuinely loud the moment you want it to.

The valves are controlled from a supplied remote, so the volume is yours to choose rather than the car's. Closed, it is close enough to standard for an early start; open, it is a different car.

Manufactured from 304 stainless steel with mandrel bends and TIG welds throughout, and finished with your choice of black, chrome or carbon fibre style tips.

Key Features

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.

304 Stainless Steel Construction

Mandrel-bent 304 stainless throughout for consistent bore, corrosion resistance and long service life.

Precision TIG Welded

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

Choice of Tips

Black, chrome or carbon fibre style tips, selected at checkout.

Direct Bolt-On Fitment

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

Performance Benefits

A deeper, louder exhaust note with the valves open
Near-standard volume with the valves closed
Reduced restriction through the rear section
Sharper throttle response
Reduced weight over the factory rear section
A strong foundation for a tuned M260

Sound Characteristics

Valves Closed

Refined and comfortable cruising sound
Minimal cabin drone
Ideal for everyday driving and long-distance trips

Valves Open

Deep and aggressive M260 tone
Increased exhaust volume
Enhanced turbo spool and overrun acoustics
Sportier cold starts

Vehicle Fitment

Mercedes-AMG A35 (W177, 2019-2025)

2.0L Turbocharged M260 Engine

This system is for the A35. The A45 and A45 S run the hand-built M139 and use a different catback - see our W177 A45/A45S listings for those.

Please Note

Professional installation is recommended. Exhaust sound will vary depending on whether the factory or an aftermarket downpipe is 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.