Lould roar and rough when cold????
 

Hi,

Just after a bit of advise.

I started my 2004 RX8 this morning and it sounded like a tank (real lould and rough), when I moved the car had no power and the engine management light flashed as it missed fired. After about 1-2 minute of loud roars it was fine and drove normal still a slight misfire when was idel.

This was serviced over 2 month by mazda and nothing was reported then however I do have a rattle from inside of the exhaust .

Any ideas or help is much appreciated.

Get the codes read and then use the search funtion at the top.
Tons of info there for you. good luck and post back

Any sound video?