Sprint Filter P08 Air Filter for Road & Track – Kawasaki Z800 ABS (2013–2015) OM33S

A Kawasaki Z800 ABS is well into the second half of its life. Built from 2013 to 2015, out of production ever since, it is maintained by people doing a sum nobody does on a new motorcycle: each service item weighed against what the bike is still worth. Disposable parts lose that argument quietly, and the air element loses it first: it costs the same every time, and nothing on the machine ever asks for it. The Sprint Filter P08 does not win that argument. It ends it, by being bought once.

Key Features

• A single layer of woven polyester, run dry — no filter oil to apply, migrate or wash out
• 80 microns of filtration at 5,050 l/m²/sec, the medium built for road and track use
• The polyester thread starts at ø 22 microns; the opening comes from the weave, not from pressed pulp
• Roughly twice the working surface of the usual performance element
• Sits in the standard Z800 airbox in the paper panel's place — nothing modified, no remap
• Cleaned and refitted for the life of the motorcycle; two years of warranty

The service item that stops being a purchase

A replacement element is a small decision taken again and again, and on an ageing bike the sum comes out differently each year. That is how the intakes of ten-year-old machines end up neglected: not through carelessness, but through a run of reasonable postponements. A washable element takes the recurring cost out of the schedule, so nothing stands between the airbox and an inspection but an afternoon. Be clear about what that is worth. A drop-in filter does not make a standard Z800 noticeably stronger, and any listing claiming otherwise is selling something else. What it offers is an intake restriction that returns to its starting point after every clean instead of drifting upward unseen.

Eighty microns, read properly

A filtration figure describes behaviour, not a wall. Sprint Filter's own comparison puts the P08 at 93.13 per cent retention of 100-micron particles against 76.42 per cent for four-layer oiled cotton — a proportion in both cases, with a wide gap between them. The rest of the specification moves the other way: finer cloth holds back more and passes less air. A trade, not a ranking: several media exist for this one airbox instead of a good-better-best ladder. At 80 microns and 5,050 l/m²/sec the P08 is the balanced setting, and on a naked road bike it fits.

Care and cleaning

Most services need nothing but compressed air, directed at the clean face so the dirt leaves the way it came. When that is not enough, wash the OM33S in lukewarm water with a little mild detergent and rinse until the water runs clear. Let it dry fully in moving air at its own pace — never with a heat gun, a radiator or a flame — and refit it dry, untreated. The Sprint Filter maintenance sheet is in the Downloads tab.

Fitment & Compatibility

Cut for the airbox of the Kawasaki Z800 ABS built from 2013 to 2015. The same element covers ten machines, reaching back through the Z750 to the Z1000 of 2003 to 2009 — one intake that outlasted three names on the tank. The full list is in the Fitment tab.