Originally Posted by Fen335i
Is it a terrible rotten-egg type smell or is is just the smell of a normal exhaust, but just a lot stronger??
The 'rotten-egg' smell is when you're poisoning the cats. Without cats, there's no such odor. But it smells like crap, and it stays in your clothes. And the richer your engine is running, the worse its smells. Definitely not 'green'