Has your factory turbocharger failed? Are you looking to increase the power in your A4? If so a BorgWarner K04 turbocharger is perfect for you. The K04 installs in the factory turbocharger location and uses all factory plumbing include intake, downpipe, exhaust manifold, and oil/coolant lines. Installation is straight forward, simply remove the factory turbocharger and the K04 drops right in.

The K04 turbocharger features a larger compressor and turbine wheel which provides for increased horsepower and torque over factory. When couple with fuel and software upgrades you can expect power gains of 40+ horsepower and torque.