Just wondering if anyone knows why their is a weird ticking or buzzing noise from my exhaust.....does anyone know why....it travels throught the whole exhaust????

 

Is it when you turn the car off? It could just be the heat causing the metal to expand. In the off chance that it's the cat...that thing could be breaking up if it's happening when the car is running. I don't notice my Evo do it that much, but my previous car ticked horribly from the exhaust (Spec-V) when it was running and the cat was perfectly fine. Everyone just said it was the heat and the metal. My Evo ticks once I turn it off for a few minutes.

 

cool thanks!!!