CS800DH Mustang - The Dark Horse redefined by Clive Sutton

If the stock Ford Mustang Dark Horse doesn’t quite satisfy your need for speed and exclusivity, then Clive Sutton’s latest creation, the CS800DH Mustang, is about to change everything you thought possible from this iconic muscle car.

London-based high-performance specialist Clive Sutton has launched a seriously enhanced version of the 2025 Mustang Dark Horse, featuring a staggering 788 bhp and 642 lb-ft of torque, making it one of the most powerful and technologically refined Mustangs available in the UK.

This is not just a bolt-on upgrade or a quick tune, it’s a full ground-up transformation that elevates the Mustang Dark Horse’s performance, handling, aesthetics, and interior comfort to a new level, while preserving the trusted Ford Performance warranty. Let’s take a detailed journey through what makes the CS800DH so extraordinary.

Unleashing the Beast: 788 bhp from a 5.0L V8 Supercharged Powertrain

The foundation of the CS800DH’s performance upgrade is a Whipple 3.0-litre supercharger expertly fitted by Sutton’s engineering team onto the Mustang’s legendary 5.0-litre naturally aspirated Coyote V8. This supercharger boosts power by a massive 76%, transforming the stock 447 bhp engine into a fire-breathing 788 bhp powerhouse that delivers a spine-tingling 799 PS at 6,700 rpm.

Torque is equally impressive, with a 61% increase to 642 lb-ft (870 Nm) at 4,750 rpm, translating to blistering acceleration and a broad powerband that keeps you pinned in your seat through every gear. The engine tuning is meticulously calibrated to maintain drivability, with all factory drive modes and traction control systems fully functional, so you get raw performance without sacrificing control.

What truly sets this upgrade apart is Sutton’s commitment to reliability and peace of mind. All enhancements are completed within Ford Performance’s engineering guidelines, meaning the factory’s full 3-year / 36,000-mile warranty remains intact. On top of that, Clive Sutton provides an additional 3-year / 36,000-mile warranty covering their bespoke modifications, an unusual level of confidence in the aftermarket world.

Aerodynamics and Styling: Carbon Fibre Craftsmanship That Commands Attention

The CS800DH’s aggressive power output demanded a comprehensive aerodynamic makeover, and Sutton’s design team delivered with a full suite of bespoke carbon fibre exterior components.

Each piece is precision engineered to balance increased downforce, reduced lift, and aerodynamic efficiency. The raised carbon fibre rear wing spans an impressive width and dramatically increases rear downforce, improving stability during high-speed cornering and reducing lift. The double-sided vented carbon fibre bonnet not only looks aggressive but improves engine bay cooling by allowing hot air to escape efficiently. Carbon fibre front splitter and side skirts reduce front-end lift and help channel airflow along the car’s sides, enhancing grip and stability. The enlarged rear diffuser works in tandem with the wing and splitter to smooth airflow beneath the car and adds to that planted feel. Even subtle details such as carbon fibre headlight surrounds contribute to the Dark Horse’s menacing look.

Ride and Handling: Sharpened Suspension and Performance Wheels

Raw power is only half the equation; the CS800DH’s chassis upgrades ensure the Mustang can handle the demands of high-speed driving with precision and poise.

The MagneRide suspension receives a comprehensive upgrade, featuring a lowered and stiffened setup that has been tuned specifically to complement the additional power and aerodynamic grip. This adaptive damping technology adjusts the shock absorbers in real-time to balance ride comfort with sharp handling, delivering confidence in all driving conditions.

Grip and handling are further enhanced by a set of staggered bronze-finished Vossen HF5 20-inch wheels, wrapped in sticky Michelin Pilot Sport 4S tyres—295/35R20 at the rear and 275/35R20 up front. This combination provides a wide contact patch that maximises traction and cornering precision. To complement the drivetrain and suspension enhancements, the CS800DH features a custom Borla ATAK quad-tip cat-back exhaust system with a bespoke H-pipe, delivering an aggressive, spine-tingling soundtrack that perfectly matches the car’s performance capabilities.

Driver-Focused Interior: Luxury Meets Race-Grade Support

Clive Sutton didn’t stop at performance and styling, they completely transform the cabin experience to match the Mustang’s new capabilities and exclusivity.

At the heart of the interior upgrade is a set of optional fully adjustable heated and cooled Recaro racing seats, offering superior support with aggressive lateral hold for spirited driving. These seats seamlessly integrate with the Mustang’s factory climate control system, ensuring all-season usability and comfort. Beyond the seats, the entire interior can be bespoke retrimmed, with customers able to choose from a broad palette of premium leather and Alcantara finishes covering the headlining, seats, door cards, dashboard, steering wheel, and carpets. This comprehensive customization allows for a cabin tailored precisely to the owner’s tastes.

For the purists who crave maximum engagement, the CS800DH is equipped with an MGW short-throw racing shifter, delivering crisp and precise gear changes with a mechanical feel that enhances the connection between driver and machine. 

The interior upgrade strikes the perfect balance between everyday usability and track-day readiness, offering a luxurious yet race-inspired environment.

Warranty and Reliability: Factory Backed, Sutton Certified

One of the biggest concerns with heavily modified vehicles is warranty and reliability. Clive Sutton addresses this head-on. All performance and mechanical upgrades comply strictly with Ford Performance’s engineering standards, meaning the original Ford 3-year / 36,000-mile warranty remains fully valid. Clive Sutton adds its own matching warranty covering their bespoke work, ensuring customers don’t have to sacrifice peace of mind for blistering performance, a rare and reassuring promise in the tuning industry.Text here ...

Pricing and Availability

Priced between £135,000 and £165,000, the CS800DH Mustang represents a rare opportunity to own an American muscle car transformed with world-class engineering and bespoke craftsmanship. The new model will be unveiled at Salon Privé, Blenheim Palace from 27-31 August 2025, showcased alongside other Sutton masterpieces such as the VIP Mercedes-Benz V-Class conversion, the new-build 1967 Mustang GT500CS, and the latest 2025 Cadillac Escalade.

Summary: Why the CS800DH Stands Out

The CS800DH offers a colossal 788 bhp and 642 lb-ft torque supercharged 5.0L V8, retaining the full Ford Performance warranty alongside Clive Sutton’s own coverage. Its extensive carbon fibre aero package not only improves looks but boosts downforce and handling. The suspension has been stiffened and lowered with MagneRide technology, coupled with Michelin Pilot Sport 4S tyres and Vossen wheels to deliver exceptional grip and control. Its Borla ATAK quad-tip exhaust provides an aggressive sound, while the interior features heated and cooled Recaro racing seats, Alcantara trim, and a precise MGW shifter, blending luxury with race-grade support. All this combines into a Mustang that delivers daily usability, track-day performance, and bespoke luxury in one breathtaking package.

Interested in the CS800DH?

To learn more, arrange a viewing, or discuss bespoke options, contact the Clive Sutton team by phone at +44 (0)20 7483 6500 or visit CliveSutton.co.uk


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