Performance Testing The DNA Air Filter And Cover On The Royal Enfield Hunter 350

The DNA air filter and cover set up is easy to fit but is it really worth the money as a performance upgrade?
I fitted one, it's an easy job that takes minutes to do. Remove the left hand side panel - two bolts to take out and then it slides off a small mounting tab. Take off the original air filter cover (3 screws) and remove the standard air filter. Pop in the DNA air filter, screw the DNA cover in place, refit the side panel and the job is done. Now go ride!
But how to tell if it's actually making a difference without the aid of dyno testing?
My solution was to test the time it took the Hunter to accelerate from 30 to 50mph in both standard trim, and with the DNA set up.
There are 3 videos below that I made detailing my findings, but if you want to cut to the chase, here are the results.

The downsides to the DNA set up? There is more induction noise. Personally, this doesn't bother me and after riding the bike for sometime with the DNA filter and cover fitted it just sounds normal now.

Here are the videos. In this one I performance test the standard and DNA set up in a third gear, 30 to 50mph roll on test using the Dragy GPS performance meter to measure the results.

I also tried to measure the induction noise, because the DNA filter is louder in this respect than the standard filter. That was a less successful test...

And finally, as part of the exhaust downpipe test, the air filters were retested to see if it really was making a 0.45s difference between the two set ups.

My conclusion? If you're looking to pep up your Hunter just a little, the air filter is an easy to fit upgrade. The down side is that extra induction noise... Either way, with standard or DNA filter, the Royal Enfield Hunter is a cracking little bike.