Uni Filter · New
Uni Filter 98-20 Honda CRF & XR 80/100 Hi-Flow Air Filter
MPN UP-4125ST · Store SKU uniUP-4125ST
Supplier stock checked 11/7/2026, 4:21:25 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Uni Filter Dirt Bike Foam Air Filters have been unsurpassed in both engine protection and overall performance for over 50 years. Their unique two-stage design produces more horsepower and more torque than any other air filter. 1-1/4"
Manufacturer fitment & guides
Check UP-4125ST against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Emissions acknowledgement required before purchase.