The K&N and UNI filters were far less efficient at trapping dust, and note that they lose their flow advantage after filtering about 180 grams of dust.

My 2012 Mark 6 Volkswagen gti has a NueSpeed Cold Air Intake system on it with a K&N Air Filter. It helps deliver more air ...

Air filters are among the most important parts of any car. It is also one of the easiest components to swap with a performance-focused replacement from K&N ...

Mazda MX-5 - K&N Air Filter Benefits? - bedgebury Would fitting a K&N Panel High-flow Air Filter to a Mk2 1.8 Mazda MX-5 improve engine performance? Would this be achieved by fitting a new filter on ...