Ok am pissed off now, put a powertec Induction kit onto my Sti 4, and sounds great while driving it, untill i come off the throttle, and then there is a horrible noise from the turbo, like a chatterin sound!! is bloody horrible, is there a way round this so i dont get the sound?

Car is pretty standard except for the induction kit and the Turbo sonic DV

 

cmon i cant be only 1 wiv this problem?

 

put your air filter box back on with a kn panel filter

whats up with the noise most people like that sound !

 

If its a recirculating dump valve, which im pretty sure it is, then it is already making that noise within the standard intake system, but you will barely hear it as it is enclosed.
When you put a cone filter on it you are opening the air intake up more which is why it is much louder.
If you dont like it put the standard airbox back on with an uprated panel filter.

 

Or change the dump valve, which I believe is a VTA.

 

Sorry, your right there. Had a few drinks, so please excuse me.

 

ahh right ok, so basically, its not actually doin any damage then?, i was worried that it was doin some damage??

 

My mate's old wrx used to sound like it was barking when he changed gear.

 

Mine does it too, only with the VTA dump valve on though

 

The "Chater noise" is something i would love to have, i used to be a commitee member/part founder of the central rsowners club, The guys there in their cossies had this and it was lovely.

 

Induction kit + decent VTA dump valve = chatter

Not sure if its from the turbo though, sounds more like air going through the induction kit. Sounds good none the less

 

right then, well if it ain fooking up my turbo, then back on it goes!!!