Land Rover Defender P300 and P400 E 90, 110 OR 130 - Sport System with - QuickSilver Exhausts

Land Rover Defender P300 and P400 E 90, 110 OR 130 - Sport System with Sound Architect™ (2021 on)





The QuickSilver Sport System with Sound Architect Valves gives your Defender P300 the sound you expected from the factory.

Loud or Quiet - our system uses our revolutionary Sound Architect™ Module, which is controlled by your mobile phone via the QuickSilver App. It could not be easier.
With the valves shut the QuickSilver system provides a civilised note which is unobtrusive and perfect for long journeys and early starts.

Switch to valves open and the monstrous side comes alive with volume and pitch increased to deliver a pure inline six car sound that enriches the experience.
Furthermore, in dynamic driving mode on occasion the exhaust delivers wonderful pops on the up-change & overrun, a nice touch.

The QuickSilver system is truly plug & play, it requires no intrusion into the cars's OE systems and is completely reversible if ever required.  


Electronic Valves inc. Sound Architect™ Module - uses QS APP (Android and iOS)

Our Sound Architect App hands control of the valves back to the driver for the ultimate experience. When you select ‘Open’ they’ll stay open and when you select ‘Closed’ they’ll stay closed – this choice will be remembered even after the car’s been turned off and on.

The electronic module included only requires a 12v feed, usually a cigarette-lighter socket. It’s Bluetooth controlled on the driver’s smart device, and pairing takes just a minute.

The electronics are designed in-house and manufactured for us here in the UK, using local British factories.


• Valve control for the perfect sound.

• Stainless Steel mandrel bent tubing.

• Improved throttle response.

• Fantastic burbles and pops on the overrun.

• Civilised to sports car in an instant.

• The 4 x straight carbon fibre tail pipes and mirrored traverse box are a huge improvement to the rear view. 



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