It's a lot of speculation and guessing without much actual data to go on. Like the theory that the 2.0-liter n/a would be able to take 10psi of boost on a 12:1 compression motor, because the low compression turbo motors can take 20psi. Reality is that 5-6 psi is the max the motor will probably run, and that's based on our actual experience of turbocharging n/a boxer motors with 10:1 compression over the last 10 years (and n/a motors of various types over the last 38+ years).
As for HKS, it's more like they are the first to be actively promoting their kit, not that they are the only ones working on production FI for the car.
Regards,
Paul Hansen
www.avoturboworld.com
www.facebook.com/avoturboworld