[T-sport]

You can get the car chipped or ECU remapped which will give you extra bhp,more torque and extra boost.You dont state which model quattro you have 1.8/2.7t so i assume its 1.8t.The boost controller wont work on its own without the cars ecu changing the running of the car.You should also think about upgrading the dv as the stock bosch valve is prone to failure and if you up the bhp will not handle the pressure.I would recommend the forge007 for the job.
Cheer t-sport