K-Jetronic CIS airbox, intake port Ø44 mm. 911 Carrera 3.0 L +911 SC (78-83)+ 911 SC USA (78-79)

Our CIS airbox is used as original factory equipment on the following vehicles that are fitted with the K-Jetronic fuel injection system:

     Porsche 911 Carrera 3.0 L 147 KW / 200 HP. (1976-1977)

     Porsche 911 SC 3.0 L 132 KW / 179 HP. (1978-1979)

     Porsche 911 SC 3.0 L 138 KW / 188 HP. (1980)

     Porsche 911 SC 3.0 L 150 KW / 204 HP. (1981-1983)

Additionnally, this CIS airbox is also used as original equipment on the versions for the USA, Canada, California and Japan of the following vehicles:

    Porsche 911 SC 3.0 L 132 KW / 179 HP. (USA/CAN/CAL/JPN) (1978-1979) ⁽¹⁾

Notes:

This airbox has an intake port diameter of 44 mm.

If your engine airbox is cracked or broken due to an overpressure caused by an engine backfire for instance, the airflow into the air-fuel metering unit will be irregular. This will make the proper operation of the K-Jetronic fuel injection system difficult and your engine’s performance will decrease. Ensure that your airbox is always clean and in good shape.

To avoid an engine backfire that could damage your airbox, we recommend the installation of the airbox overpressure pop-off valve reference 911.020082SP.

⁽¹⁾ Includes the following vehicles:

For the USA, Canada and Japan versions of the 911 SC from 1980 to 1983, use the CIS airbox reference 911.020080.

Quantity required per vehicle: 1