Sprint Filter P08 Air Filter for Road & Track – CFMOTO NK 450 (2024–2026) PM270S

Every part fitted to a motorcycle still in its first years is a small argument about what happens later, and the safest arguments are the ones that can be withdrawn. The Sprint Filter P08 for the CFMOTO NK 450 is one of those. It goes into the series airbox in the outline the paper panel vacates, it asks for no adaptor and no change to the fuelling, and the original element can go back in whenever the owner wants it there.

Key Features

• Fits the standard NK 450 airbox: no adaptor, nothing cut, no fuelling change
• One layer of dry polyester cloth — 80 µm filtration at a rated 5,050 l/m²/sec
• The polyester thread measures from ø 22 microns; the opening is woven, not pressed
• Runs without oil, so there is nothing that can travel downstream of the box
• Washed and reused instead of replaced at a fixed interval
• Two years of warranty, and a service life meant to match the motorcycle's

Nothing the factory settled gets moved

Intake parts often arrive with conditions attached — a different flow rate the map was never written for, a box that has to be opened up, a sensor left reading something it was not calibrated against. None of that is in play here. The panel keeps the original outline, the engine management goes on seeing the airbox it was set up with, and the whole job is reversible in the time it takes to undo the cover. That also fixes the limits of the claim: a drop-in element will not make a standard NK 450 measurably stronger, and it should not be bought in that expectation. This is a servicing decision, not a tuning one.

A part that is kept rather than stocked

Sprint Filter specifies the P08 for the working life of the motorcycle rather than to a replacement interval, and covers it for two years from the date of purchase. In daily terms that removes a dependency: no consumable to keep on a shelf, and no service postponed because the right panel has not arrived yet. Polyester cloth takes handling, too. It can be washed, dried and refitted over and over without the softening and splitting that eventually ends a pleated paper element.

Care and cleaning

Start with what this element never needs: no oil, no solvent, no additive of any kind. A compressed-air line applied to the clean side and worked outwards is the whole of a normal service. For a film of oil mist rather than road dust, warm water and a little mild detergent will deal with it. Then leave it to dry in air — patience, not heat; a flame or a hot-air source will spoil the weave, and a damp panel should never go back in. The PM270S maintenance sheet is in the Downloads tab.

Fitment & Compatibility

This is the P08 element for the CFMOTO NK 450 of 2024 to 2026. Four CFMOTO models draw through the same airbox and take the same panel — check your model year against the compatibility list before ordering.