BMW LSD

There's something odd going on at BMW.

The Quaife ATB Differential provides significantly improved traction and handling for powerful rear-wheel drive cars, and is a must-have upgrade for BMW owners looking to maximise the potential of their machines.

VAC Motorsports, one of the USA’s leading BMW performance and race car specialists, has now agreed with Birds to become the exclusive importer of BMW Quaife ATB differentials for North America.

VAC Motorsports now stocks all BMW Quaife differential applications, as well as offering a customer-friendly exchange core solution on many of the popular models, and have their own network of sub-distributors based around the U.S.

Watch BBC Top Gear presenter Chris Harris demonstrate the Quaife ATB's capabilities in our E92 335i!

The Quaife ATB Differential provides significantly improved traction and handling for powerful rear-wheel drive BMW and Mercedes cars.

Birds are the exclusive worldwide distributor for BMW and Mercedes Quaife ATB Differentials.

Birds B-Series Suspensions include specially valved Bilstein shock absorbers and accompanying bespoke Eibach springs, designed to improve ride and handling on U.K roads.

Book a demonstration with Birds and we will show you how we can transform your BMW into one of the most dynamic high-performance road cars in the U.K.

We always purchase the latest BMW models. As a BMW tuner it is crucial for us to learn first-hand about the strengths and weaknesses of these cars, test products on them, develop our packages on them, and then demonstrate the complete car to our customers

Below is a list of our current BMW demonstrators:

The Quaife ATB limited slip differential (LSD) is now available and in stock exclusively at Birds for all F30 3 series and F32 4 series variants.

The Quaife LSD is a unique device that mechanically senses traction loss and distributes torque to the wheel with most grip accordingly. The result is a transformation of the car’s overall performance - increasing acceleration speeds, cornering speeds, and improving the general handling, grip, and dynamics of the car.

The Quaife ATB Differential provides significantly improved traction and handling for powerful rear-wheel drive cars, and is a must-have upgrade for BMW owners looking to maximise the potential of their machines.

The Quaife ATB Limited-Slip Differential provides significantly improved traction and handling for powerful BMWs and Mercedes.

Once installed, drivers will notice an immediate difference as the Quaife automatically biases torque across the axle to the wheel with most grip. Unwanted wheel-slip is greatly reduced, enabling drivers to exploit the full potential of their machines for the first time, leading to a more exciting, rewarding and rapid driving experience.