Can someone identify the noise coming from this guy's car?

[bk7794]

If you listen to when he is doing pulls you can hear this clicking as he is going WOT. Doesn't sound too good for the engine. Any idea on what it might be?

[six]

Sounds like the injectors to me. He has aftermarket injectors, so that's probably it. Spraying an insane amount of fuel.

[bk7794]

Wouldn't injector noise be more plentiful and change more dramatically as the engine revs up? Quite possibly though

[Shadow]

Yeah, I doubt that's injector noise. At high RPM, they'd be clicking so fast that it would almost sound like a hum.

I have no idea about what the sound could be though. It sounds horrible.

[bk7794]

Something I'd think ''Cobb tuning'' would have stopped. To me it almost sounds like pinging. But that would increase as the revs shoot up right?