Hi all, I am new to this site and also new to subarus. I recently bought an 03 wrx, and i love it!! The only thing is that after it starts to spool up it makes a high pitch whineing noise. It sounds like a kazoo. I am not sure if it would be a boost leek or if the turbo is going bad or what. I orderd a boost gaguge so I would be able to see if theres a boost leek. Any help would be awesome. Thanks in advance. :)

Is it modded, does it have catless uppipe installed, dp??

its got a front mount and intake, and a blow off value, also a catback exhaust. There is no uppipe installed or down pipe. Thanks