I realized that the air flow has improved.

● Mounting parts: Intake suction kit

It seems that the normal bellows part has air resistance, so I installed this intake suction kit.
The result of the exchange is very good!
When accelerating, the feeling of a little slack was eliminated, and now it accelerates smoothly.
You can feel that the air flow has improved.
In the future, I would like to replace the air cleaner and muffler.