Sup fellas, me and my brother just got done installing skunk2 full coilover kit with shock on his 2001 gsr. After everything was done we test drove it and there like a thumping noise coming from the rear whenever we hit a bump. So we though we fawk up, so we jack up the car and recheck everything again, and still can't figure out what is causing the thumping noise from both the passenger and driver rear side. Someone please help!

 

it might be loose. try tightening the upper mount. this happened with my prelude. turned out the rears were loose.