My friend recently gave me his HKS SSQV III which was brand new, genuine. So I thought why not slap it on, I'm running a stock GTST Series1 turbo and I'm getting turbo flutter in the low RPMs, not so bad at high rpm though, at high RPM I can actually hear the bov not flutter. I'm venting to atmosphere too. The owner I bought it off did a dick move and decided to mechanically tune it to 14psi (I have no boost controller) which pisses me off because right now I don't have the money to buy a boost controller/take it to a mechanic.(is there a way I can drop it myself?)
Is this bad for my turbo? I google around and see too many mixed answers, hopefully I can get someone who experienced the same problems.
Thanks
EDIT: I'm not even sure if it's running 14 psi, I realised the stock turbo would not handle that at all, brb previous owner used shitty marketing tactics.