K&N Replacement Air Filter (33-2456) Audi > TT > Mk2 (2006-2014) > 2.0 TDI The OEM turbo elbow is

The OEM turbo elbow is an aluminium cast part with a 3” inlet tract that tapers down to the factory turbo charger cold side feed

We run this valve on our very own Mk1 race car

4 inch inside diameter

these filters work perfectly in our ‘Hi-Flow’ range

K&N Replacement Air Filter (33-2456) Audi > TT > Mk2 (2006-2014) > 2.0 TDI The OEM turbo elbow isK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your