When the throttle is fully open, a huge volume of air is drawn in at extremely high speed. On the other hand, when the throttle is off, inertia comes into play, and the intake air is compressed in front of the closed throttle. When the accelerator is opened again, the recoil from the compression increases the negative pressure in the sealed air cleaner box, resulting in improved charging efficiency. Thus, the intake system of Honda's naturally aspirated engines is very clever and important. The best air cleaner is one that reduces resistance to intake air while also providing high dust-proofing, which is effective against dust in rainy weather.
| SKU | 17220-ZF1-000 |
| Brand | SPOON |
| Shipping Weight | 1.4000kg |
| Shipping Width | 0.250m |
| Shipping Height | 0.130m |
| Shipping Length | 0.250m |
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