Description
Description

Developed for enthusiasts seeking a more intense driving experience, the QuickSilver Supersport System with Sound Architect™ builds upon the Sport system with enhanced sound character and sharper response.
By replacing the mid-section silencer with a high-flow X-Pipe, the system blends both banks of the V8 to produce a cleaner, crisper, and more aggressive tone across the entire rev range. The result is a deeper, more purposeful exhaust note that truly matches the Defender P425’s V8 performance.
Electronic valves controlled via the QuickSilver App (iOS & Android) allow instant switching between refined and aggressive sound modes. With the valves closed, the exhaust remains composed and suitable for daily use. Open them, and the system unleashes increased volume, pitch, and a commanding muscle-car soundtrack.
In dynamic driving modes, the exhaust delivers pops, crackles, and pronounced overrun effects—adding excitement without compromising everyday usability. The system is designed for professional installation, requires no permanent modifications to factory electronics, and is fully reversible.
Sound Architect™ Technology:
The Sound Architect™ module restores full valve control to the driver, memorizing open or closed settings even after the vehicle is turned off. Powered by a simple 12V supply and controlled via Bluetooth, setup is quick and straightforward. All electronics are designed and manufactured in the UK, ensuring precision, reliability, and quality.
Key Features:
– Supersport configuration with X-Pipe design
– Electronic valve control via Sound Architect™
– Stainless steel mandrel-bent exhaust tubing
– Improved throttle response and sound clarity
– Pops, crackles, and burbles on overrun
– Refined or aggressive sound modes on demand
– Quad straight carbon fiber tailpipes
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.














