When the engine is shut off there is a sound of escaping air from under the hood.
I'll try to locate it later on today but for now, any ideas?
Also, when applying the brakes rapidly a similar sound is heard.
This leads me to think somethings wrong with the brake booster.
I know all four brakes are working since I get piles of brake dust on all four wheels. Brake fluid reservoir is full and hasn't changed since I've bought it in the summer.
YouTube - Car noises
Video including my awesome exhaust note when letting off the gas rapidly.
