2pcs Vacuum Actuator Exhaust Electric Valve Wireless Remote Control Switch Kit

[mellowfellow]

So, I recently purchased my 370z last November.  It seemed to have had some additions done to it. One of them is in the title above. I wasn't sure what it was at first,as I had never seen something like that.  The Actuator was attached to my battery. My mechanic told me the blue tubing extends all the way down my exhaust pipes. And then I took it in to Abbey motorsports and they confirmed that it is a valve control system for my exhausts. They asked I the car came with a FOB for it, but it didn't and they searched for an activation switch as well, but to no avail. I have found what I believe to be the exact thing on Ebay, that comes with 2 FOBs. However, I can't seem to find a single FOB on its own. My question is, has anyone had experience with this kind of system before? And how would I go about locating a FOB that is able to sync to this unknown system. The whole kit is about £50, so dont really want to buy the while thing, just for the sake of the FOB. The unit doesn't really have any identifying features on it. The first pic is what I found on Ebay, and the second one is what I believe to be the receiver box attached to my car.