I'd disagree with that.

I think you can get to the low 12's faster and more reliably with an SRT-6, but we aren't getting much lower than that without spray.

I seriously doubt there will be a readily available supercharger upgrade for this car anytime soon.

The Mazda's turbo upgrades and engine reinforcements will continue to grow until those cars get into the high 10's. It's only a matter of time.