These reducing rings are perfect to reduce the neck size of a RamAir Universal filter, these reducing rings fit in the neck of the filter and allow you to have larger neck sized filter to fit your vehicle.
There are 4 reducing rings supplied. Their sizes are...
- 90mm to 85mm
- 90mm to 80mm
- 90mm to 75mm
- 90mm to 70mm
These ring allow you to step down any 90mm internal diameter Ramair Cone Filter to suit your application.