got this from the simota homepage. ito ata yung mga pros.

Increased Performance
Simota Filters allow a higher velocity airflow. Better airflow means better breathing.
Better breathing allows your engine to develop
... MORE POWER
... MORE TORQUE

Low Restriction
Multi layer design traps dust whilst still allowing air to pass through.

Washable, Reusable Cotton Filter
All Simota filters feature fully washable, reusable high quality cotton filters. The pleated design of Simota filters provides a greater surface area for filtration.

Economical
Less expensive in the long run because they are designed for years of use and reuse.
cons are kelangan very religious ka sa cleaning nito kasi pwedeng marestrict yung flow of air pag madumi na causing loss of power and babagal ang hatak ng kotse.