OK, I know this will sound strange but I have this weird kind of mid-range pitched buzzing insect wing like sound coming from the center of my dash or directly behind the fire wall during acceleration at ~25-40 mph. It sounds like some kind of insect I've heard in the woods. I have an 06 GT (auto) with a C&L Racer CAI and Brenspeed tune (93 octane). Now I know it's not an insect but it really bugs me. Any one have any clues?