Rotten Egg/Ammonia Smell from Exhaust

[Tmac2010]

Anyone know what this is? Never had that happen on a car before or heard of it...

 

[lightfreak]

Pretty common on the 4Runner , I only get it on hard acceleration.
If you mod your tailpipe to the side you won’t notice it as much

Sulfur (aka. Rotten Egg) Smell on '03 4Runners

 

[Bossman]

rotten egg smell...

Sulfur smell when accelerating hard

Rotten Egg/Sulfur Smell?

TSB on sulfur smell for V8 03-04 4 Runners

TSB recall Sulfur smell is nauseating but only comes intermittently Need tips

Rotten egg smell. Does it go away???

 

[BR06run]

Anyone know what this is? Never had that happen on a car before or heard of it...

My 2007 Tundra smells like that all the time.

 

[Battle Born Offroad]

You have the back window rolled down dont you?