Ramair Replacement Filter for JSK-121 (V2) Jet Stream Intake – RFE-CB-JSK-121
This Ramair replacement filter is designed specifically for the updated JSK-121 (V2) Jet Stream intake kit. It is ideal if your original filter is worn, damaged, or you want a fresh filter to keep performance consistent.
- Performance foam element – captures dirt and dust while still flowing very well.
- Stainless steel cage – supports the foam so it keeps its shape under load and at higher airflow.
- Spun aluminium neck – acts like a small velocity stack, helping to smooth air as it enters the intake to reduce turbulence.
- Quick-release fittings – allow you to remove the filter quickly for cleaning and refitting.
Important – Which replacement filter do you need?
This filter is made for the newer version of the JSK-121 Jet Stream intake kit (V2), released from March 2026 onwards. It will not fit the earlier JSK-121 intake version.
On the left, the original JSK-121 is shown, on the right, the redesigned V2 model.
Maintenance and care
The quick-release design makes it simple to remove the filter for cleaning. Regular cleaning will help keep airflow consistent and extend the life of the filter. Always follow Ramair’s cleaning and re-oiling guidance where supplied, and refit the filter securely before driving.
Additional Information
| Weight | 2 kg |
|---|---|
| Dimensions | 25 × 25 × 25 cm |
| Brand |




