Originally posted by icireland:
I've noticed a few teams running side exhausts with the muffler exit pointed directly into the oncoming air flow (i.e. in the direction the car is travelling).

It is my understanding that you want as little resistance as possible for your exhaust flow, so wouldn't this hinder it? Or is there some kind of underlying witchcraft going on that makes this preferable?
As a new Forum member, you should introduce yourself and identify your team.

As for your query, think for a moment about the pressure in the exhaust gas flow Vs the air pressure when the car is moving forward, even at top speed.
Realistically, there is no real restriction to gas flow, even if a forward facing exhaust doesn't look too intuitive.

PC