The facts.
DescriptionThe whole story▼
The Aprilia RS 457 makes its power in a narrow, busy band, which is exactly why its air filter matters more than the price tag suggests. The Sprint Filter P08 PM252S replaces the standard paper element with a dry polyester medium that flows more freely from the first ride and keeps flowing, because you wash it instead of replacing it. Sprint Filter has supplied Aprilia Racing in World Superbike and MotoGP since 2015, and the P08 is the road-going expression of that work.
Key Features
- Dry polyester filtration medium — no filter oil, no re-oiling ritual, no risk of over-oiling a sensor downstream
- Filtering surface roughly double that of other performance filters
- Constant, calibrated air passage — polyester does not depend on overlapping layers the way cotton gauze and sponge do
- Washable and reusable for the life of the bike
- Direct drop-in replacement — standard airbox, standard fixings, no remapping and no modification
- In the business since 1952 and among the oldest manufacturers in the field
Why the polyester medium behaves differently
An air filter has two jobs that pull against each other: pass as much air as possible, and stop what would damage the engine. Cotton gauze and sponge answer that by stacking layers, which means flow is poor in some areas and filtration is weak in others depending on how the layers happen to sit. Sprint Filter's polyester fabric is permeable, dimensionally stable and unaffected by the folding used to build the element, so the passage stays even across the whole surface. The OEM paper element does the opposite over time: as it loads with dirt its pleats deform, and an irregular pleat cannot deliver a constant volume of air.
Road, commute and the occasional track day
It raises airflow without trading away the filtration you want on a road bike that sees rain, town traffic and summer dust in the same week. If your riding has moved almost entirely to the circuit, look at the P08 F1-85 instead; if you spend your summers on dusty back roads, the P14 is the more protective option. For everything in between, the PM252S is the one to fit.
Care and cleaning
Cleaning is a two-minute job. Direct an air jet through the element in the opposite direction to normal intake flow and most of the accumulated debris comes straight out. If it is genuinely filthy, start with compressed air, then soak it in ordinary household detergent, agitate it gently, rinse until the water runs clear and let it air dry completely before refitting. One rule has no exceptions: never oil a Sprint Filter. The full illustrated maintenance sheet is in the Downloads tab.
Fitment & Compatibility
Engineered specifically for the Aprilia RS 457 (2024–2026), 457 cc parallel twin. This is a model-specific element, not a universal panel cut to size — it seats in the standard airbox exactly as the original does, and the surface area is optimised to that airbox.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Aprilia RS 457 (2024–2026)
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