Sprint Filter P08 Air Filter for Road & Track – Moto Guzzi V7 III Special (2017–2020) PM138S

Chrome is a promise an owner makes to themselves about weekends. The V7 III Special wears it on the tank flanks, the mudguards and the headlight shell, and none of it keeps looking that way unless somebody repeatedly decides to give the bike an hour. Riders who make that decision are the reason a washable air filter is worth discussing at all. The Sprint Filter P08 PM138S pays back the habit of undoing fasteners and putting things back properly; a paper cartridge only pays back the habit of ordering another one.

Key Features

• Dry-running polyester cloth — nothing is ever brushed, sprayed or soaked onto it
• Woven from threads of ø 22 microns upwards rather than pressed out of pulp
• Filtering area on the order of twice what rival performance elements present
• Slots into the standard box unaltered; nothing is trimmed and nothing is reflashed
• Cleaned and refitted rather than consumed, over the motorcycle's whole life
• Covered by Sprint Filter for twenty-four months from the day it is bought

A part that answers to attention

Most consumables are indifferent to how conscientious their owner is; they wear out on schedule whatever you do. This one behaves like the chrome does. Give it ten minutes with an air line each spring and it returns to the condition it was in when you unwrapped it, because the dirt sits on a woven surface rather than embedding itself into a matted fibre bed. Neglect it and it loads up like anything else would. The difference is that neglect here is recoverable, and on a paper element it is a purchase.

What polish cannot buy

It is worth stating the limit plainly, because the aftermarket rarely does. Dropping a PM138S into the airbox of a standard V7 III Special will not make it quicker, and any listing that implies a horsepower figure from a panel filter is describing something else. The engine keeps the fuelling, the throttle response and the type approval that left the factory with it. What changes is smaller and lasts longer: a lower resistance at the intake mouth that stays low across the interval instead of creeping upward, and one item struck off the list of things that get thrown away.

Care and cleaning

Work from the clean face outwards with compressed air so the dirt leaves by the door it came in through. Anything the air refuses to move comes out under a tap: lukewarm water, a mild detergent, rinsing repeated until nothing more washes out of it. Drying is the step that matters — still air at room temperature, no matter how long that takes, and nothing warm anywhere near it. Fit it dry and leave it dry, since there has never been an oiling stage to skip. The maker's care leaflet is attached under Downloads.

Fitment & Compatibility

Catalogued for the Moto Guzzi V7 III Special of 2017 to 2020. The same twenty-one-machine listing runs from the 2001 BMW F 650 CS through to the current V7 — you will find every entry, with its years, in the Fitment tab.