10 horsepower is typically what they consider "feelable" to somebody that is well in tune with their vehicle. Though, what I can guarantee that you would in fact feel would be the responsiveness up throttle and boost gained from this mud.
I don't know about the inlet, but I have a Kerma tune on my 2016 and it works great. Better turbo response, Everything is smoother. I am totally happy with it. The VW fix had neutered it. They may have an office in Utah. I don't know. But they also have an office 30 minutes from me in Avon, CO.