Depending on who you talk to, anything that isn't electric or runs on unicorn farts isn't efficient enough.
I think there's a certain assumption that because we are not going to charge 6-8k, it's going to be some cheapo kit. That's certainly not the case - it's just that there's several factors here, such as economy of scale. We are not planning on selling 5-10 kits a year, we are instead planning to make most of the parts on our factory lines in larger amounts. This brings costs down quite a bit. We are not picking wire-reinforced silicone for the piping because it's cheap - it's not, when you are getting it moulded to specific shapes - we are doing it because it works best for this application. Wire reinforced silicone is *tough*, you could stand on it.
We won't be going for ultimate horsepower, either. While we could, it's not in our planning for this kit. What we want to see, and what we aim for with the main kit, is similar to our other kits - boost from 1500rpm with a very strong mid-range. With reliability.
I also don't have any desire to get into any arguments over who's got a better kit. It's like saying what's better, italian or mexican food. At the end of the day, people are simply gonna have their own preference regardless of what is claimed about either.