This weekend, my car got noticebly louder in cabin..... not sure if it's louder outside. I only have a z-tube which was installed last year and everything else is stock. I looked online and people refer to this as a "drone", loud audible montone sound in cabin between 2K-3K RPM.....

Only thing I can think of is hole in exhaust or something wrong with my cat which I really hope not.....

Any experience with this anyone? Thanks

 

It could be that you have a blown cat....have you seen bits and pieces of ceramic material lately around your rear tips or while working underneath your car?

 

turns out right at the muffler connection it cracked right off......

anyone know if I can swap in a 2007 350z mid and muffler? I have a 2003 g35 coupe 6mt.

This one.
http://my350z.com/forum/east-canada/...aust-help.html

Thanks