SneedSpeed R53 Race Spec 6-Speed Manual Transmission with Helical LSD

Put your W11’s power to work.

The SneedSpeed R53 Race Spec 6-Speed Manual Transmission is built for MINI Cooper S R53 owners upgrading their drivetrain for aggressive street driving and track use. It combines a performance transmission build with an included helical limited-slip differential, giving you the gearbox and traction upgrade in one package.

Our approach is simple: build something we would run in our own cars.

Helical Limited-Slip Differential Included

Making more horsepower is only part of the job. Getting it to the pavement is what matters.

The included helical limited-slip differential (LSD) automatically biases torque toward the front wheel with more available grip. This helps reduce inside-wheel spin under power and makes better use of the W11’s torque as you accelerate out of a corner.

Its gear-driven design provides smooth, progressive operation without clutch packs. You get improved traction when you lean on the throttle, with the drivability you want in a street-driven MINI.

Built for Hard Use

More power, sticky tires, and repeated track sessions put extra demand on the drivetrain. The SneedSpeed Race Spec transmission is built with those demands in mind, pairing reinforced transmission internals with a helical LSD to support the way you actually use the car.

Whether you’re replacing a tired gearbox or finishing a modified R53 build, this is an opportunity to address transmission durability and traction together.

Features and Benefits

• Helical LSD Included: Helps reduce one-wheel spin by biasing torque toward the wheel with more available grip.

• Reinforced Internals: Upgraded gears and bearings support increased drivetrain loads and hard driving.

• Smooth LSD Operation: Gear-driven torque biasing delivers progressive engagement without clutch packs.

• Six-Speed Manual: Keeps the driver involvement and control that make the supercharged R53 so much fun.

• Direct R53 Replacement: Fits the MINI Cooper S R53 equipped with the factory six-speed manual transmission.

• Gearbox and Differential Upgrade Together: Take care of both while the transmission is already out of the car.

Applications

Built for MINI Cooper S R53 models with the six-speed manual transmission, including:

• Modified supercharged street cars

• Track-day and road-course builds

• Performance builds needing better traction under power

• Cars with worn transmissions whose owners want an upgrade during replacement

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

SneedSpeed Powertrain Systems
Built from Racing. Proven by Results.