First time getting a look at the stock filter. It is absolute garbage. Looks like they put together some soggy cardboard on there no way it would hold up for 12K miles. The BMC much better quality, I dont have to worry about it falling apart and for the of us not storing out bike in a woodshop it will filter properly. It definitely allows more air to flow into the Airbox. As there is a noticeable growl during hard acceleration. Sounds pretty cool in my opinion. Power wasnt what I was looking for just wanted a filter I can clean regularly and BMW really when cheap on the stock filter so it had to go. Sorry no pictures forgot my camera.