Cat rattle.

[Simon Wallwork]

I hit a pothole yesterday and there was a rattle afterwards, which persists.
Pretty sure it's from one of the cats.
I changed one on this car before, and the mechanic silenced the rattle with a hammer, but I still ended up fitting the oem cat.

Now, I'm in Bulgaria- and emissions don't matter here. The car is running well and I'll certainly give the thing a whack and see if it helps.

If I were to remove the cat, and poke out all the enviro-gubbins contained within, will it cause the car any problem?

Car is a 2000 model FL S8 btw.