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tl;dr:
looked at product, lengthens intake runners, not even surprised to see sooner peak power with more average torque earlier on. This is exactly what lengthening intake runners a specified amount is expected to do. Peak power is sooner, and past that will die off. Now there's a limit to that, depending what wave harmonic you're using, if you keep lengthening you'll move the power up higher again. A second order harmonic will require excessively long runners.
Looks like a nice addition for anyone that wants their power sooner. Considering these engines don't rev all that high, it's probably good for anyone with a brz/fr-s that's all motor.
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