Skyactiv Supercharger Quest

I am on a quest...To transform a great car into my dream car.
to supercharge the Skyactiv 2.5L. I want the peak power of the 2.5T with the broad power band of the 2.5L.
Goal: To be on par with e46 M3 or Civic Type R. (and way faster than the Skyactiv 2.5T: less torque, more horsepower).
I initially thought I would pursue cobbling together my own kit (Considering Supercharger on Skyactiv)
But found VT-Racing, Chinese company, twin-screw supercharger for 2.0L or 2.5L Skyactiv engines (launched in early 2019 in China).

Supercharge Your Skyactiv Mazda 2.3.pdf

UPDATE 12/2022 - 20 months, 19000 miles, many racing events, lots of hard driving and daily commute, everything is great, still amazed at the mpg, same 34-36 freeway, 22-30 in-town depending on my mood. Getting ready to install smaller pulley for more power!
AFAIK 40 people now running the supercharger, other than one that failed and was replaced under warranty, they have all been running fantastic (really convenient to be able to drive on the stock tune as needed). There are now group buys that are happening so the price is coming down into the mid $3k range, and we now have at least 3 tuners involved beyond the included base tune from the supercharger company, so lots more happening and more to come.

The Skyactiv-G engine is just beginning to shine for how boost-able it really is, and how much power it can make while retaining amazing fuel efficiency!

(note: in all of Corskports development of their turbo kit they never blew up an engine even with them getting up into the 12+psi range and well over 280lb/ft of torque to the wheels during beta testing, these engines are so strong that nobody yet knows the limits, though we can probably draw a lot of inferences from the Miata Skyactiv boosted builds. Extra note: Corksport did destroy multiple manual transmissions, so the transmission will be the issue before the engine it seems...)

Started FB group: "Skyactiv-G Super/Turbo Community" (if you're going to do this, come join us)

Skyactiv Supercharging Guide
Supercharging at a glance summary:
Cost - $4,000usd (kit, S&H, spark plugs), $5k+ depending on extras.
Purchasing - No proper international store front, have to work around that...
Purchasing Contact - IG: Jiasusupercharger, WhatsApp:+86 131 2935-1806
Tuning - Provided as part of the kit, but it is a very censervative tune. DrTuned is now partnering with one of the early adopters, and will be officially supporting tuning for the Supercharger kit. Also Matt of OVTune, now VFTuner, is getting involved....
Power - 225-270whp (old kit on stock cx5 dyno’d at 241whp), there’s possibility of smaller pulley to increase boost, or cams/etc., in the future…
Feeling - Way faster than that power number sounds like. Instant power at every RPM that builds more and more power all the way to redline. There’s always boost when needed, pushing 40% more air!
Efficiency - On the freeway, no loss in MPG, in-town generally -1-4mpg depending on how heavy your foot is (when not pushing it, can get as good MPG as N/A motor).

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UPDATE 7/12 - 2 months & 1400 miles with the supercharger and it has been great, exceeded my expectations!
for more info read on in this thread or check out my YT channel

https://www.youtube.com/channel/UCtn5E6RGFX4oEDZIh3oGOtQ

UPDATE 4/25 - SUPERCHARGER IS INSTALLED AND RUNNING!
It feels great on the road, with a lovely "zingy" sound when on the throttle, but when idling or cruising it almost sounds stock (250-300HP crank). Power just builds and builds as the RPM goes up with peak HP at red-line.

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Complimentary PARTS
1. Spark Plugs (reqired) - need to run colder heat range, found NGKs that are slightly smaller gap (.31" vs .44") and one step colder heat range (8 vs 7)
These are actually OE on Nissan GTR
2. Oil Cooler (recommended) - adding 30% more power means more heat, adding thermostatic oil cooler should help longevity. This kit is made for an ND Miata so the oil filter plate will fit fine, and was able to use one of the brackets to leverage intercooler mounting point.
3. Oil Catch Can - adding forced induction will likely increase blow by and I want to keep the twin screws clean for a long life.
4. Liquid Chill - coolant additive proven to modify surface tension/conductivity characteristics of liquid to increase cooling capacity, drop temps by 25f
5. Boost gauge and Oil Pressure/temp gauges - To have better visibility of what's happening when I'm pushing the car on track or any time. I found a two in one gauge for oil pressure and temperature, plus matching boost gauge. Both are digital so even though the boost will only go up to 6psi I can see exactly where it's at.
Oil Pressure/Temperature Gauge Kit
Digital Boost Gauge Kit
6. Antigravity ATX30-RS 5.5lb, 880CA Battery - to help compensate for the additional weight of the supercharger kit (40-80lbs) switching to ultra light 5.5lb battery can drop 40lbs to help offset. Antigravity also has a bluetooth battery tracker that I was going to install to keep tabs on the health of the battery.
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*Note: VT-Racing has not installed their kit on any Skyactiv with manual transmissions (mostly CX5s and some 6s), and are not sure how it would handle it. They did seem open to using a softer spring on the bypass valve to lower the peak psi to potentially be livable for manuals.
The good news is they claim the automatic has no problem at all with it, same transmission used with the 2.5T and this will be less torque than that (more horsepower)