JR air filter, 911 Turbo (75-89) + 964 Turbo (91-94)

If you are looking for the best possible technology in air filtration, we recommend the use of the washable and reusable JR air filter which is suitable for installation in the following vehicles:

Porsche 911 Turbo 3.0 L Type 930 (1975-1977)

Porsche 911 Turbo Carrera (USA-CAN) 3.0 L (1975-1977)

Porsche 911 Turbo 3.3 L Type 930 (1978-1989)

Porsche 964 Turbo 3.3 L (1991-1992)

         Porsche 964 Turbo 3.6 L Type 965 (1993-1994)

This flat rectangular filtering element is suitable for 911 Turbo’s that were fitted with the K-Jetronic fuel injection system.  

JR air filters are made of 4 layers of cotton, which are held together by two outer layers of steel wire mesh. To prevent rust, the steel mesh is galvanized and plastic-coated, giving it a double protection. JR filters are impregnated at the factory with a special type of oil which also serves as an additional filtration element. Because of the oil, the dust is retained on the outside surface of the filter. A simple rinse with intervals of between 5 000 and 20 000 miles (7 000 and 30 000 km) depending on the driving environment for your Porsche, is enough to bring back the JR cotton filter to a  “like new” condition.

A recent evaluation carried out under ISO 5001.1988 has shown that JR filters do keep out 99% of airborne particles down to the 2.8 micron size (that is, 2.8/1000 of one millimetre). Moreover, the airflow through the JR reusable cotton filter is far greater than the airflow which passes through the OEM paper air filter.

Quantity required per vehicle: 1

Note : this part is sold individually.

This part replaces the following OEM reference:

911.010408: Air filter, 911 Turbo (75-89) + 964 Turbo (91-94)