Has this been thoroughly documented? I just put a BMC filter in mine and would like to know more about this seemingly unlikely defect.Throw the DP air filter away. It's allowing dirt into your air box. Just like the stock air filter does. Get an MWR two piece air filter kit. Or the one piece MWR air filter. All other after market air filters don't seal the air box.
As unlikely as you may think it is, it's definitely a real thing. I had a BMC filter in my bike for 5,000 miles including some rain riding. Took a peek inside my airbox and it was covered in a nice thin film of dirt and dust. Everything was sealed just as the stock filter was. No way the MWR two piece filter could do that. There's a thread here somewhere with more personal accounts as well if you need more convincing.Has this been thoroughly documented? I just put a BMC filter in mine and would like to know more about this seemingly unlikely defect.