Turbo or DV going out?

[audidriver7500]

Hello all, I got this noise when i accelerate after car has been off for a couple hours or more. It sounds like an STi (think coilpack failure without the shaking). Its also not as loud. it goes away after a min or so. I'm just worried that it might be a sign of bad things to come. Any help would be greatly appreciated. I'd like to fix it.

[GTMRS4]

sound like 2nd air pump just warming up the cat

[audidriver7500]

sound like 2nd air pump just warming up the cat

Would this sound just start out of no where? I've had the car for more than 2 years and just recently started? also I am chipped if that matters.

[IceMole]

Is it a ping type of sound?

[GTMRS4]

can you better describe the noise or better yet take a sound bite? SAI should always be there, if it is a whistling noise then the DV may have died

[audidriver7500]

OK. first off, thanks for the responses.

I've listened to the sound again. its more of a flapping sound that goes faster when the RPM goes higher. i can hear the turbo and it sounds like it always has. it does go away after a min or so.

[AudiA4Turbo22]

i think what ur hearing is the engine knock coming from the lifters, mine does the same most of our cars do the same!

[audi808a4]

sounds more like an exhaust leak to me. crack in the mani is my guess.