bringing back from the dead i have the same problems ever since I installed my coilovers I get the thumping sound from passenger front AND rear

I have fixed this problem by turning up the stereo lol, but it's gets annoying when someone sits in my car for the 1st time and they all say what's that noise!!!

Any updates on fixes would be much appreciated...

**I took it to a mechanic and he checked my compression rods and said its not that, could possibly be the end-links but from the above posts seems like end-links might not solve this problem