Bentley GT GTC Exhaust System 3SD253607F

For the Third Generation Bentley Continental GT and GTC (2019–Present), part number 3SD253607F identifies the Rear Exhaust Silencer (Muffler) assembly.

As part of the 3S (or 3SD) chassis series, this component is significantly more advanced than earlier models, often featuring integrated electronic valves to modulate the exhaust note between “Comfort” and “Sport” modes.

1. Technical Specifications

• Position: Rear Section (usually refers to the main silencer box before the tailpipe finishers).

• Compatibility: Specifically designed for the 6.0L W12 and 4.0L V8 engines of the current generation.

• Valve System: This unit typically includes the Electronic Actuators (or mounts for them) that open and close internal flaps.

• Material: High-grade stainless steel construction for corrosion resistance and heat management.

2. Variations & Suffixes

The F suffix is part of an evolving series of revisions for this muffler. You may encounter other versions depending on the specific trim:

• 3SD253607F: Standard production unit for the GT/GTC.

• 3SD253607E / D: Earlier revisions often found on 2019–2021 models.

• “Sports Exhaust” Option: Vehicles equipped with the factory Akrapovič titanium exhaust or the Bentley “Sports Exhaust” package will use a different part number (often starting with 3SD253609) and are considerably lighter.

3. Common Service Notes

• Valve Rattle: A common issue with modern Bentley exhausts is a metallic “tinging” or rattle at idle, which is often caused by a loose butterfly valve inside the 3SD253607F unit.

• Actuator Failure: If the car feels sluggish or the exhaust note doesn’t change when switching to Sport mode, the electronic motor mounted to this silencer may have failed or become unplugged.

• Installation: Unlike the older generation, these are often clamped rather than welded, making replacement more straightforward, provided you have a lift to manage the vehicle’s underbody panels.