[oldeguy]

Finally purchased a K&N air filter for my 2012 Focus. According to the advertising, I will get a 1% increase in horsepower. Who knows? I just like the fact of having a reusable filter. The original filter is a standard paper filter.

What K&N neglect to tell it's buyers is that by putting their decal on your vehicle, you get an increase of 10 horsepower..........