Sprint Filter P08 is our standard performance air filter, ideal for street legal use or have a funny track day with a tuned motorcycle. https://www.sprintfilter.net/motorcycle/products/bmw/f-650-s/47

3. Sprint Filter P08 is our standard performance air filter,
ideal for street legal use or have a funny track day with a
tuned motorcycle.
An independent testing carried out by University of Wales
Trinity St David, Sprint Filter's P08 polyester tissue, the
"standard" tissue found in Sprint Filter replacement air
filters, provided the best airflow of any leading brand air
filter, including leading brand "race" filters. Sprint Filter
P08 uses a special polyester filtering media with a wire
diameter of only 70 microns. Its unique weave pattern can
filter debris as small as 80 microns while having the
highest permeability for any other air filter brand on the
market (our P08F1-85 excluded). The increased airflow of
the P08 air filter will help maximize your motorcycle
power potential while offering excellent filtration
protection.

6. VIRTUALLY MAINTENANCE FREE
To clean your Sprint Filter P08, simply remove the filter from the
airbox, blow it clean with compressed air, and reinsert it. No messy
washing, aftermarket cleaners or oil treatments required, saving you
valuable time and money!
LONG LIFECYCLE
Being manmade, the P08's polyester material will, if
properly looked after, display no discernible deterioration
or loss of structure or performance over the lifetime of
your cmotorcycle.

8. BUILD QUALITY
With over than 65 years of experience in producing air
filters, and success at the highest levels of competition,
you can be confident in the quality of materials and
manufacture of your Sprint Filter P08 air filter. An
independent testing carried out by University of Wales -
Trinity St David (https://issuu.com/…/air-filter-element-
flow-analysis_wa_b9b…), Sprint Filter's P08 polyester
tissue, the "standard" road / race tissue found in Sprint
Filter replacement air filters, provided the best airflow of
any leading brand filter, including leading brand "race"
filters.

10. Current production vehicles are typically equipped
with paper filters, while performance vehicles used
oil-soaked cotton or sponge. An air filter job is to
guarantee good air flow while preventing
significant particles from ending up in the engine.
These two operations naturally oppose each other
and that is where Sprint Filters’ polyester filtering
fabric takes a leap above the rest. Polyester fabric
is extremely permeable, stable and is not affected
by folding during construction. Cotton or sponge
air filters, on the other hand, have a weaving that
depends on the overlapping of numerous layers,
leading to poor flow in some areas and ineffective
filtration in others.

12. Premium cotton 4 layers air filter -
microscope view 10x

13. Sprint Filter P037 air filter
microscope view 10x

14. The Sprint Filter polyester air filters retain
93.13% of 100 μ particles (Sprint Filter P08 air
filter) - 91.8% of 37 μ particles (Sprint Filter
P037 air filter) - 95.22% of 100 μ
particles (Sprint Filter P08F1-85 air filter)
versus the 76.42% of 4-layer oil-soaked
cotton
Because of its uniform structure, the Sprint
Filter air filter ensures less air flow
disturbance, also thanks to the exclusive and
patented filtering material in single-layer
polyester