i recently installed skunk2 lowering springs on my car on stock shocks.
my dumbass friend said we can jus launch the spring while its still connected to the tower, so he proceeded on doing it to the front left tower, while i took out the front right shocks and compressed and removed the springs correctly.

anyways, he launched the spring and it made a pretty bang noise.
but hey it got out, so i didnt think anything of it.
so we installed the lowering springs onto the shocks and put everything back up correctly. now while i was driving i notice a loud knocking noise coming from the front left tower (the tower he launched the spring from). we inspected it to see if there was any noticable thing that could have been knocking to make such a noise, but we found none.

any ideas what that may be?

also, the front left side of the car is lower the the front right ( i dunno y also)

helppp meee

 

Firstly, don't ever let that idiot touch your car again. He's lucky he wasn't seriously injured, and you're lucky he didn't seriously damage your car (or perhaps he did).

If you inspected that corner for a knocking noise but found nothing, then you didn't inspect it well enough. Check all bushings, make sure all bolts are tighht, make sure all ball joints are free of play, and double check that you assembled the upper shock mounts correctly.