It is easier to set up than the power filter made in China, you can experience the performance rise throughout the whole area. Every car body got soaked overnight at camping, but the engine was hitting safely, and as soon as traveling for 20 minutes the filter dried. It is recommended because it is cheap to replace it with a new one.
I bought it as a trade-mark because it was a manufacturer, but rubber cracked in a week after I installed it even though it was not started even once. It is the worst unchanged from that made in China.