Hey guys,
I have a metallic buzz at about 2800 RPM all the way to 3400. It starts when I've been driving the car for a while and it gets louder on WOT. It is there when the clutch is engaged and the car is in gear. I looked on Miata.net's Garage section for the sound and it describes something similar and says it could be a crack in any of the heatshields, a rock stuck in between the heatshields, etc.
My question is : would it still be exhaust related if it only happens when in gear? Or is it possible that it's a transmission problem?
Thanks in advance.