Mine smells like poop when I run it every night. On my way home from work I have to run up a long grade and it boosts the whole way up if I want to hold much speed- every time smells like explosive diarreah. What's going on, I'm burning up my cats? This was a problem with the Spec V, caused the cat to disintegrate and be ingested back up into the engine, causing massive oil consumption and eventually engine failure- problem was super-rich A/F mix there.
