QuickSilver Sport Exhaust with Sound Architect™ – Land Rover Defender OCTA 110 P635 (2025 on)

Description

 
Designed specifically for the flagship Defender OCTA, the QuickSilver Sport System with Sound Architect™ delivers a dramatic upgrade in both sound and performance for the 4.4 L twin-turbo V8.

Electronic valves controlled via the QuickSilver App (iOS & Android) allow seamless switching between sound profiles. With the valves closed, the exhaust maintains a smooth, refined tone ideal for long-distance driving. Open the valves and the system releases a powerful V8 soundtrack with increased volume and sharper pitch.

In OCTA driving mode, the exhaust produces engaging crackles, pops, and overrun effects—enhancing the driving experience without sacrificing everyday usability. The system is designed for professional installation, requires no modifications to factory electronics, and can be returned to stock if needed.
 

Sound Architect™ Technology

The Sound Architect™ module gives the driver full control over valve operation, remembering selected settings even after the vehicle is switched off.

Powered by a simple 12V supply and controlled via Bluetooth, installation and pairing are quick and straightforward. All electronics are designed and manufactured in the UK for consistent performance and reliability.
 

Key Features:

– Electronic valve control via Sound Architect™
– Stainless steel mandrel-bent exhaust tubing
– Improved throttle response
– Pops, crackles, and burbles on overrun
– Refined or aggressive sound modes on demand
– Retains factory OCTA tailpipe finishers
 

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Notes: Items sold by Defender Parts Company often ship from the UK or other countries outside of the U.S. In some cases, there may be additional costs for Air Freight, Customs, Taxes, and Duties. Your card will not be charged during checkout; we only obtain an authorization. If any extra charges apply, we will contact you with the full details before processing your order. Please review our Terms & Conditions before placing your order.