Audi A3 8P Cold Air Intakes (2006-2013) - Modded Euros Audi A3 8P Cold Air Intakes (2006-2013) Add some quick and easy horsepower gains to your 2006-2013 Audi A3 or A3 Quattro with a performance cold air intake system from Modded Euros. Browse our selection of intakes from brands like Unitronic, Neuspeed, APR and more. × Audi A3 Cold Air Intake - K&N Performance Air Intakes Need help finding the right Audi A3 cold air intake? K&N cold air intakes for the Audi A3 or any other vehicle can be found using K&N's Search by Vehicle tool. By providing a year, make, model and engine size, you will find all K&N performance upgrades available for that vehicle.