🔍 UP-4200ST Uni Air Filters Review

According to my experience, this filter truly does its job. It filters out all the dirt and debris before it reaches the engine. This enhanced the performance of my motorcycle and reduced the engine damage. However, the installation process was a bit tricky for me. Overall, I am impressed with the quality of this product.

Worked. Note: It comes dry and needs to be oiled before use. Do yourself a favor and use real foam filter oil, not motor oil or paper pulp oil. I wish there was some foaming oil included so I didn't have to buy a whole container just for this filter. But it's not her fault.

Meets my quality expectations. I still had too much air, so I installed an aluminum cylinder (headliner) between the two foam tiers. Because only the end of the filter lets air in, the bike runs great. I first tested the concept with a plastic bag with the end cut off. This worked great, but the red filter slipped off. Now I have a lot of speed without hesitation and don't have to change injectors. He is also very handsome. 850 Suzuki release from 1982!