Defender L663 P400 QuickSilver Sport System with Sound Architect™ (2021 on)

The QuickSilver Sport System is a valved exhaust for the Land Rover Defender L663 P400. Its Sound Architect™ Module is controlled from a mobile phone through the QuickSilver App, switching between a civilised note with the valves shut and a louder inline six sound with them open. Forge Automotive supplies the system and fits it at our Darwen and Leeds sites.

Key features

• Sound Architect™ valves controlled from a mobile phone through the QuickSilver App
• Civilised, unobtrusive note with the valves shut, more volume and pitch with them open
• Burbles and pops on the overrun
• Stainless steel mandrel bent tubing
• Four straight carbon fibre tailpipes and a mirrored traverse box
• Plug and play and completely reversible, with no intrusion into the OE systems
• Improved throttle response, according to Hunters Prestige

Good to know

• This system is for the Defender P400.
• The pops on the up-change and overrun occur on occasion, in dynamic driving mode.

Fitting

Hunters Prestige describe the system as plug and play. It needs no intrusion into the OE systems and is completely reversible.

Supplied and fitted by Forge Automotive

Forge Automotive can fit this exhaust system at either of our sites: Darwen in the North West or Gildersome, Leeds in Yorkshire. PPF, colour change wraps, colour matching and other customisation are available on enquiry. See more Land Rover Defender L663 parts.

Common questions

How are the exhaust valves controlled?
By the Sound Architect™ Module, which is controlled from a mobile phone through the QuickSilver App.

Can the system be removed later?
Yes. Hunters Prestige describe it as completely reversible, with no intrusion into the OE systems.

What warranty does it come with?
Hunters Prestige cover their parts with a standard 1-year warranty against manufacturing defects, from the date of purchase.

Can Forge Automotive fit this exhaust system for me?
Yes. We fit this exhaust system at both of our sites: Darwen in the North West (Eccleshill Business Park, BB3 0GY) and Gildersome, Leeds (Overland Park, LS27 7FE). Get in touch to book a slot.

Fitting is available on every part at our North West (Darwen) and Yorkshire (Leeds) workshops. Prefer to fit it yourself? Fitting instructions ship with every part.

In-stock parts ship in 3–5 working days, fully insured. Every part is fitment-checked before dispatch.

Covered by the manufacturer warranty. Fitting through our workshop keeps it intact.