Maybe that he had laser jammers installed as well, which could explain the higher price point for the system. I would hardly believe someone would pay 3600 for just a radar and custom install, but as they say, a sucker is born every minute.

Crap guys I was gonna flip it for 5k... LOL used its maybe worth 600 if you have all the parts. No warranty, only way to know it works... speed. Not to mention the subscription for all the updates etc.
The laser shifters would be obvious and i doubt he has it. Its the guy with the 4k in engine mods because he got it detailed and a K&N filter, oh and he is a Navy SEAL too.

My bad that is a ZR4 on the back plate. I will install one for you for 1500 bucks and the parts are 200$. Install is so difficult, Only recommended if you have experience putting on a license plate.

Don't you know the "guy code for cars" though shall never discuss, tell or inform said wife under any circumstances including duress of any car related mods or otherwise related purchases"

Keep it!