Quote:
Originally Posted by jakobnev
cfg83 -
The table screams it.
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At the start of the video a slide says "no tuning or modifications" I just don't see how any muffler can increase A/F from 15.1 to 17.1. At 17.1 that Toyota would have been barely able to keep running.
If I may speculate, there is an open fitting on the Vapouriser and by venturi effect, air is drawn into the exhaust system, diluting the emissions and adding oxygen some of which improves converter action. Many problems with this theory, like any back pressure...
More likely Emissions Fairy.
-mort