I was hesitant to purchase this replacement filter, but after reading positive reviews I decided to give it a try. As my tests showed, this filter significantly improved my motorcycle`s engine performance. The airflow was smoother, resulting in a NOTICEABLE increase in horsepower .The only downside was the higher price compared to other filters on the market. However, I believe that the added benefits are worth the extra cost. Overall, I highly recommend this filter to any automotive enthusiast See full review