I have an appointment to see Subaru about several issues regarding my STOCK 12 WRX hatch w/ almost 15K miles this Wednesday. Issues with a possible throw out bearing (faint rattling noise when clutch disengaged on neutral), sounds of a squilling belt when clutch engaged on neutral and when changing gears (faint sound, only when the car is cold - goes away when warm), noisy shifter or trunk (creaking/squeeky sounds), & rattling A-pillar.
I noticed today that my turbo is louder than usual. I drive a lot of city driving were I don't get to use the turbo. When I drive on the highway, I hardly go over 70mph. Today however, I was coming home from a weekend outing and had the chance to actually drive the car. I was conservative, not exceeding 80/85mph and for only short moments. I didn't want to be wreckless and irresponsible.
Anyways, on 5th gear, the whistle is loud when flooring/gassing it above 3200rpm. The whistle is only loud on 5th gear. I tried to see if I can hear the whistle as loud on other gears over 3200rpm, but nothing comparable. Other gears have a quieter whistle sound. Below are two videos. Should I be concerned and bring it up to the dealer or is this NORMAL and I'm being paranoid? I really don't want the dealer to push the car if they don't have to.
1st vid of the odo. Sorry for the quality, taken with iPhone. Notice 0:03, 0:09, & 0:15.
2nd vid is on the iPhone on the iPhone holder, just to hear the sound clearer. Notice 0:04 & 0:10.
Thanks in advance!