Does anyone here use these speakers or know of anyone that does? If so are there problems with mounting them? If not I think I'm going to give these speakers a go because I have heard pretty decent reviews for them and they aren't too expensive. I want to get my system finished and installed so it doesn't sit in a room as wasted space (been doing that for 2 months already).

 

I can't speak for the 63.5, but I bought and installed the 60.5CS, which (at least form the glance I took on the Infinity website), looked to be similar in size, shape and depth.

This was in my 94 formula, and the 60.5 are components, so I had to screw around with pulling the old (seperate) tweeter, and putting the new one in the factory hole. (I wanted a stock look).

Again, I don't know how the z28's differ, but I'd bet it to be smooth sailing.