Not any more.
I tried many things, and this one performed the best.
YOSHIMURA does not make its own products, but sells this one… I think that is why this one is so good.
I tried both the FCR Carburetor Body and the Normal cab, and I could feel the performance improvement in both cases.
The combination with FCR Carburetor Bodycarburetor is the best.
If you set the carburetor properly, it will power up.
It is also very durable and can be used repeatedly.
The dust collection capacity is also high.
The cover is sold separately, so it is durable even in the rain.
A bad point
There are many inexpensive power filters available, and you can expect them to perform reasonably well. However, this is the real deal. It will definitely improve the performance.
Please try to combine it with FCR Carburetor Bodycarburetor. It's really interesting.