Yep, the SRT's have bumpstops on the front and rear. The directions in the Eibach box say you don't need to cut them on the front shocks with their springs. The shop that installed the springs told me my car didn't even have them. I had to tell them where to find them ........ but when I finally got around to cutting them myself on the rear, it was obvious that they hadn't touched once in their entire lives. The front ones are still whole.

I would guess that a popping noise is something loose or a missing rubber. Re torque everything that was loosened. One of my rear Koni shocks makes a squishy fluid sound, but i bought them used. They work fine, they just make that fluid rushing back and forth noise.

Les