smart fortwo Performance Air Filter - 451 - aFe Pro 5R - Pre-Oiled Media
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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