Review on 🔍 UP-4200ST Uni Air Filters by Charles Adelaja

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!