K&N Engine Air Filter: High Performance, Premium, Powersport Fits 2009-2018 Royal Enfield (Bullet B5, Bullet C5, G5, Classic) Ro-5010

Bad product. Not as expected.

Installed this on my Re Classic 500. Simple replacement. Any difficulties were due to the way royal enfield builds its airbox. Will buy this again if we (the bike and myself) are still around in ten years.

Huge improvement over my stock air filter. I got it for my '16 Royal Enfield Bullet 500. UCE engine. Stock filter is too restrictive. This one has less pleating on the interior, and allows air to flow freely. My bike is no longer choked for air. When installing you need to cut the old filter from the steel lid, and scrape residue/solvent clean. This filter is a little thicker than stock, so I had to cut the sealing lip off one side to get the thickness right. Then I glued lipless side to the lid with napa ultra black sealant, that rtv on roids stuff they use for oil pans and engine assembly. Fits just right. Make sure the filter lip and the plastic air box seal are almost flush to each other. Otherwise, the filter, or plastic air box won't seal right.

I stuck a nut in the plate and attached a rubber packing around it to fit it.The filter fits tightly without gaps.

The filter is great but to make it fit right I had to remove the metal plate from the original filter and glue it on the replacement filter. Does seem to have more power.

There is a huge power difference in my bike and all goes to this air filter