Sprint Filter P08 F1-85 Air Filter for Racing – Yamaha YZF R15 V3.0 (2017–2026) PM198S F1-85

Most YZF-R15 lead a double life: track days or a club grid at the weekend, and the same journey to work five days a week. That is a genuinely difficult brief for an air filter, because the two halves want opposite things. The circuit half wants flow and tolerates a coarse weave, since the surface is swept and the engine is inspected often. The commuting half meets fine airborne material continuously and wants the weave as fine as the engine can afford. The P08 F1-85 answers the first half emphatically — 15,000 l/m²/sec at 85 microns — and it is the wrong answer for the second.

Key Features

• The P08 F1-85 racing medium: air flow 15,000 l/m²/sec, filtration to 85 microns
• Dry polyester with no oil in it — nothing to migrate onto the throttle body or sensors
• Filtering surface roughly double what other performance filters offer
• Takes the original element's place in the standard airbox — nothing modified, no remap
• Washable and reusable, cleaned between sessions with compressed air from the clean side
• Two years of warranty; it is built to last the life of the motorcycle

Which half of the life dominates

The sensible way to settle it is by counting. A bike that races most weekends and commutes occasionally is a race bike, and the F1-85 is the right part for it. A bike that commutes daily and visits a circuit three times a year is a road bike with a hobby, and it should be running the standard P08 — or the P14 at 14 microns if the commute is dusty. The mistake is choosing the medium by which half feels more important rather than by which half accounts for the kilometres.

Or change it twice a year

There is a third option that suits this bike particularly well, because the element sits entirely inside the standard airbox and needs no modification or remapping in either direction. Swapping media takes an afternoon and leaves nothing behind, so a bike with a real racing season and a real commuting winter can simply run the fabric that matches what it is doing. Whichever way it is settled, one thing should not be expected of any of them. None of these elements adds power to a standard R15. A filter can only return the restriction it was adding, and on a healthy standard intake that is a small quantity — the honest benefit is that it stays small, because a washable element is returned to its starting condition instead of climbing steadily until it is thrown away.

Care and cleaning

Compressed air over the clean side, directed outwards, and refit dry. When a deeper clean is due, wash in lukewarm water with a mild detergent, rinse until the water runs clear and let it dry fully in air — never with heat, never near a flame. Whichever medium happens to be fitted, it is not oiled before washing and not oiled after. The Sprint Filter maintenance sheet is in the Downloads tab.

Fitment & Compatibility

Made for the Yamaha YZF R15 V3.0 from 2017 to 2026. The same PM198S F1-85 element covers seven machines across the 125 and 155 range; the complete list is in the Fitment tab.