Wow, that was an interesting video. When I saw you posted a 5hp gain, it frankly sounded like bullshit. But the dyno explains it well, and his comparison charts to the 690R (and him pulling out the 690 airbox) were very convincing.
When it stops raining I will definitely give it a go, both with the stock filter and also the DNA high flow when it arrives.
I imagine if I like it, I will drill and mesh the lid to keep crap out of motor given the free flow filter.
Thanks for posting that. Will report back.