u/Hot-Cover-6946

wierd noise above 6000. Below 2000 rpm, there is a noise of some "knocking"ish sound but not really metallic. But it disppears right over 2000, so im guessing these are injectors? My main issue is above 6000rpm, but only at above 6000 rpm there is a wierd knocking ish noise, but only with full throttle. I tried 40%+- throttle and there was no noise. Car has 0w30 oil, regularly serviced, cosworth supercharged, borla exhaust.

Any tips on what it could be?