aFe · New
aFe MagnumFLOW Air Filters Round Racing P5R A/F TOP Racer 14D x 5H (Blk/Blue)
MPN 18-31405 · Store SKU afe18-31405
Supplier stock checked 11/7/2026, 5:46:42 PM 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
The T.O.P. Racer from aFe is a patented design by aFe which allows air flow from the side and top of the filter in a single piece design. The T.O.P. Racer filter is uses a one-piece design that eliminates leaks and sealing failure under changing pressures. Air flows in from both top and side sections. This unit uses the Pro 5R media which is constructed of 5-layers of progressive cotton gauze to produce maximum flow. The T.O.P Racer filter is washable and reusable and has a 100 satisfaction guarantee. Magnum FLOW T.O.P. Universal Round Racing Air Filter w/ Pro 5R Media 14 IN OD x 5 IN H Magnum FLOW T.O.P. Universal Round Racing Air Filter w/ Pro 5R Media MagnumFLOW Round Racing PRO 5R Air Filter; TOP Racer
Manufacturer fitment & guides
Check 18-31405 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
