Why choose aFe over other brands?

Get a 46.1% increase in flow rates!
aFe performance air filters use industrial urethane on all sides. Not two as in some other brands. This allows for better sealing inside the airbox. Additionally, aFe's filter pleats run the shortest possible distance. Other brands may run the length of the filter allow it to "Suck in" during heavy acceleration or throttle loads. The shorter span of aFe pleats makes for a stronger filter. Also, aFe pleats are deeper which lets more air pass through the filter with less restriction. This gives quicker throttle response and extends the service intervals due to higher dust holding ability.
Pro 5R Filter Media:
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
advanced FLOW engineering (aFe Power) is a premier designer and
manufacturer of automotive performance upgrade systems and components.
Current product lines include cold air intake systems, high performance
direct fit and racing air filters, exhaust systems, intercoolers,
turbochargers, electronic programmers, diesel fuel systems, throttle
body spacers, and more. aFe is passionate about providing the most
compelling, innovative, and highest performing products that are
designed, built and tested in the USA. aFe was founded in 1999 and has
headquarters and manufacturing facilities in Corona, California, USA.