The K&N Panel Filter Fits BMW 2.0L Diesel X3 X4 X5 518D 520D 2014-2016 33-3042 and is intended to boost your vehicle's horsepower and acceleration. among the unique features of this filter is that it is reusable — unlike many other filters on the market, this filter can be washed and then used again. This dramatically reduces the rate at which you have to replace your filter.
The filter is designed to maximising air flow without sacrificing its power of filtration, and it is intended to function for as long as 80,000km before it even needs to be cleaned.