Clutch rattling? Lose starter maybe?

Yes the issue was not there until I installed the headers. I felt it was the throwout bearing as well but its all new in there. I bought a clutch set at oreillys for like $100, came with clutch and throwout bearing.

In all honesty im not 100% sure when it does it. I dont recall feeling it in the pedal. I feel sometimes it does it when I press in the clutch or just at random.

I will do more detective work.