Just wanted to give and update and respond to comments regarding reports of the possible limited life of the Fiamm compressor.
I'm happy to say that they're still going strong in both cars after over 2 years with no noticeable reduction in loudness. I don't own the Chevy anymore but I know for a fact they're still working fine. I sold it to a neighbor's friend and he honks them whenever he comes by.
I'm a middle aged guy, with a middle school mind.