Hey, i'm new to this site and new to the Subaru and WRX scene..I just purchased an 07 WRX TR about 5 days ago..the car runs great and i love it. There are a couple mods that it has on it which is a full catback exhaust system(not sure which brandname) and it just has a short ram intake. Like i said, the car runs fine no issues or anything like that. But there is a strange noise when accelerating at lower speeds in pretty much every gear, i cannot really explain what this noise sounds like but it's kind of like a whistle..i guess? now i've read some threads and did some research and some are saying maybe its just the turbo spooling up or something like that..but i've also heard it may be a wastegate leak or an exhaust leak? The noise does happen at highway speeds also in 4th and 5th gears and its only when accelerating..when i let off the gas it will go away, i'm guessing it is something to do with the turbo and just wondering if anyone else has had this problem.. thanks!