Uni UP-4200ST Air Filters,black

Running it on a Husqvarna chain saw. Getting better air flow and way better filtration over factory setup.

Great fit, good quality.

As always UNI never disappoints. Don't waste time and money on the cheap knock offs at the cost of your engine, stick with the original made in America best foam filter on the market!

Meets my expectations for quality. I was still getting too much air so in installed a cylinder of aluminum (roof flashing) between the two stages of foam. With only the end of the filter allowing air intake the bike runs great. I tested the concept with a plastic baggie first with the end cut out. It worked great but the red filter would slide off. I now have plenty of RPM's no hestitation and I need not need to change the jets. It also looks really good.1982 850 Suzuki!

Did the job. Note: it ships dry and will need to be oiled before use. Do yourself a favor and use actual foam filter oil, not motor oil or oil meant for paper filaments. I wish it came with a bit of foam oil, so I didn't have to go buy a whole container just for this filter. Not their fault though.

Works great.

Direct replacement for my Hammerhead GTS filter

Works well like most UNI filters. Fits nicely and is decent quality.