SneedSpeed R53/R52 MINI Cooper S & JCW Supercharger

Street Series & Sport Series Performance Upgrades

Your supercharger is the heart of your R53. When it wears out, power drops, throttle response suffers, and the driving experience that made the first-generation MINI famous starts to disappear.

The SneedSpeed R53/R52 Supercharger Program is designed to bring that performance back—and then take it further.

Every supercharger begins as an original Eaton core and is completely rebuilt with new bearings, seals, PTO components, and fresh rotor coatings. The result is a direct-fit replacement that restores reliability, improves drivability, and delivers the performance expected from a SneedSpeed product.

Available in both Street Series and Sport Series configurations, there's an option for everything from a daily-driven MINI Cooper S to a performance-focused street build.

Why Choose SneedSpeed?

At SneedSpeed, we don't just rebuild parts—we improve them.

With over 20 years of racing, engine development, and MINI performance experience, we've seen what works and what doesn't. Every supercharger is rebuilt to meet the standards we expect from our own race and street cars.

If we wouldn't run it, we don't sell it.

Street Series

Restored Performance. Proven Reliability.

The Street Series is designed for owners who want factory-like performance with the confidence of a professionally rebuilt supercharger.

Each unit is completely remanufactured using premium components and restored to original operating specifications for smooth power delivery and long-term durability.

Features

• Fully rebuilt Eaton supercharger

• New bearings and seals

• New PTO gears and service components

• Recoated rotors

• Restored factory clearances

• Direct bolt-on installation

• Factory-like drivability

• No tuning required

Perfect For

• Daily drivers

• OEM-style restorations

• Replacing worn or noisy superchargers

• Stock and lightly modified vehicles

Sport Series

More Airflow. More Power. Same Proven Reliability.

The Sport Series starts with the same complete rebuild as our Street Series and adds CNC-ported inlet and outlet passages designed to improve airflow through the supercharger.

By reducing restriction and increasing efficiency, the Sport Series delivers stronger performance throughout the powerband while maintaining the reliability of the factory Eaton design.

Features

• Fully rebuilt Eaton supercharger

• CNC-ported inlet and outlet

• New bearings and seals

• New PTO gears and service components

• Recoated rotors

• Increased airflow efficiency

• Direct bolt-on installation

• Supports stock and modified vehicles

Performance Advantage

The Sport Series typically produces 8-10% more power than the SneedSpeed Street Series, making it the ideal choice for enthusiasts looking to get the most from the factory Eaton platform.

Perfect For

• Performance street builds

• Modified MINI Cooper S and JCW models

• Intake, exhaust, and pulley upgrades

• Drivers seeking maximum performance from the stock-style supercharger platform

Street vs Sport

Vehicle Applications

• 2002-2006 MINI Cooper S (R53)

• 2005-2008 MINI Cooper S Convertible (R52)

• MINI John Cooper Works Models

• W11 Supercharged Engines

The SneedSpeed Difference

The first-generation MINI remains one of the most rewarding driver's cars ever built. Don't let a worn-out supercharger hold it back.

Whether you choose the Street Series for factory-level reliability or the Sport Series for increased performance, every SneedSpeed supercharger is built with the same goal:

Deliver more reliability, more confidence, and more smiles per mile.

Built From Racing. Driven By Evolution.