HX expansion tank
 

Was looking at getting a heat exchanger expansion tank for my ZL1. When I first got the car, I found quit a few options. But now, I see very few. Did everybody just quit making them for a reason? Like they are not really needed. Or is there something else going on? From what I could find, there are really only two available, starting at $400.

I really liked the one that was available from Lingenfelter, but it appears to be MIA. Anybody know where I can find one?