K&N High-Flow Original Lifetime Universal Clamp-On Air Filter: High Performance, Premium, Washable: Flange Diameter: 2.5 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round, RD-0720

I run one of these in one of the most challanging race environments you can put a air filter in. This filter didnt hurt me on the dyno at all and its compact so it fits in the very tight space I have. It picks up a lot of dirt qnd cleans easy.

I purchased this universal k&N because they don't make one for my 2021 CF moto 600 with slight modification to the airlock neck ( making it 2 1/2 from 2 1/4 it fit and works great, can't go wrong with a k&N

Great replacement for HOG air cleaner.

I upraded from UNI filters as those collect so much dirt it restrict air flow and oil you spray becomes too sticky and messy to clean!I gave the K&N filter 1 star for the install. I drilled out a 3/8 hole in the "&" symbol of the k&n letters. The raptor 700r air box is not designed to hold filers using clamps it slips on and mounted with a bolt. I felt the clamp and filter could just slip off while use on jumps and bumpy terrains. This pre drilled hole i made will allow me to use the original butter fly screw and bolt mount. I still also used the clamp. This will probably void the warranty but it works great as the screw is snug fit to go through the 3/8 hole. The washer guarantees no debris and now im not worried the of the filter falling off!

Works well, inexpensive, and easy to install. Also my turbo sounds way cooler with this rather than the factory air box

good

I bought two of these filters to replace the K&N's on my 1995 Pontiac Firebird with the LT1. These were replacing part #b035b4. They are slightly taller but have the same diameter as the old filters and work great. Easy install. And you don't have to oil them which is even better.