Egg smell from exhaust

[Ghost10]

Is it normal sometimes to smell sulfur from the exhaust? Now something I noticed if I use the lowest grade octane here in California I think it’s 89 the egg smell I’m sorry the sulfur smell seems to happen a lot more if I change to 91 octane which I think it’s mid grade the egg smell doesn’t exist but the exhaust smells sweet it’s tolerating only notice stuff because I have a two car garage and it’s one of those narrow garage is and I usually park in the front so the garage smells like exhaust for a little while before backing up

 

[gooffeyguy]

Usually a rotten egg smelling exhaust means a bad catalytic converter

 

[Ghost10]

Only have 49k and I did remove some exhaust portions muffler and the res have been removed. I noticed the day of doing that I notice the sulphur odor