We're machining and powder-coating some masts right now, the amplified base is a part discontinued by Metra, which we modify into this antenna.
We ordered a case last year, and after the success of the first GB, bought out the remaining six cases from Metra. We're getting near the end of our supply, after which we can manufacture no more antennas.
Everytime we create a new GB, it's machining and powdercoating masts, then taking the time to assemble antennas.
We're happy to offer this product to NSXprime members, and should have an update in a few weeks (we'll create a new thread).