mass flow | Model | Year | Part Number | Description | Details |
| 911 C1 | 1984-87 | POR.02.911.201K | Mass Flow Sensor/4K/U.S. |  |
| 911 C1 | 1984-87 | POR.02.911.251K | Mass Flow Sensor/4K/Euro. | |
| 911 C1 | 1988-89 | POR.02.911.301K | Mass Flow Sensor/8K/US | |
| 911 C1 | 1988-89 | POR.02.911.351K | Mass Flow Sensor/8K/Euro | |
| 911 C1 | 1984-89 | AIR.98.C114C | K&N FlowTech Filter Replacement | |
| 911 C2/C4 | 1989-92 | POR.02.964.101K | MFS/Requires Bosch Hammer | |
| 911C2/4/RS | 1993-94 | POR.02.964.201K | MFS/Requires Bosch Hammer | |
| 911 C2/4/RS | 1989-94 | AIR.99.C114C | K&N FlowTech Filter Replacement | |
| 944 Turbo | 1986-87 | POR.02.951.101KS | MFS/Rec.Aux. Boos Gauge/4K DME | |
| 944 Turbo | 1988-89 | POR.02.951.201KS | MFS/Rec. Aux.Boos Gauge/8K DME | |
| 944 Turbo S | 1988-89 | POR.02.951.301KS | MFS/Rec. Aux.Boos Gauge/8K DME | |
| 944 Turbo | 1986-89 | AIR.98.RU3130 | K&N FlowTech Filter Replacement | |
designed by AP Logic. copyright 2006 ap logic, gpr parts