Review on 🔧 K&N High Performance Engine Air Filter: Washable Replacement Filter for 2007-2019 DS/Opel/Peugot/Vauxhall/Mini/Citreon (DS3/S4/S5/S7, Grandland, Cooper Countryman, C5, C4L) - Model 33-2936 by Mike Hernandez

Such a simple concept. Make an air filter that performs better than the factory part when filtering, allows more air to flow through the filter to reduce restriction, and can be cleaned and serviced as needed. Give it a 10 year / 1 million mile warranty too. That's what you get when you buy a K&N air filter. I have used K&N air filters on all my cars, motorcycles and SUVs for decades and have never had a problem. That's money well spent.