Originally Posted by ///SilverSaphRT6
Good job Rudy!!
ps why is my car smelling like Rotten eggs!?! Only get this smell when cruising down highway @ around 80 for extended amount of time. RPM's stay just under 3K
On the SRT or your Mustang? Sounds like the catalytic converter. Maybe try switching fuels if you always go to the very same gas station and see if that makes it go away but more than likely, the CCs are going bad.