They've posted pricing on their web site and a demo video on social media. Says out of stock, so not available to purchase yet. I didn't see anything about when they'll start taking orders.
Not cheap, but compared to all the other options I've seen so far, this one has me the closest to pulling the trigger. Might be because my Cadillac XLR-V has a similar variable valve exhaust system. Would like to see some video/sound of it on the street.