Recently my car has been making a weird noise around 3k in 3rd gear. Sometimes it does it in 4th but mostly 3rd. It almost sounds like a metal rattling. It never used to make it then all of a sudden it would do it occasionally now it does it almost at will. If im just cruising it wont but once I go past 1/4 throttle it does it. It also wont do it while just revving it. I uploaded a video to youtube but its kind of hard to make it out.
Its a little easier to hear the second time I get on it.
Car is an 06 lgt stage 2
The noise has increased and I cant find any loose lines or anything. I did a LV and log today and my IAM has dropped to .8750 which I know isnt good. Also getting a lot of knock. Would all the knock be from the noise? It seems to be in line with when I hear the noise. I went to a local subaru shop and he told me to check the cylinder roughness which there is none so im guessing thats a good sign.
Any other ideas? I was planning on getting a new turbo in the very near future ( especially if this ones bad ) but I didnt want to drop the money on new turbo if something else big is messed up.