16ga exhaust vs. 18ga?

[Ken]

Quoting Nate Stuart <newt at newtsplace.com>:
<snip>
> I have a bunch of pics of the new unit up at:
> http://www.newtsplace.com/90tq/index.php?content=exhaustpics.html&pagetitle=Exhaust-%3EImages

That looks much better than the first revision.  Nice!

> Oh, and as far as materials used, I think It is around 2x180deg bends of
> the 3" size from the cat back up over the rear axle, and I used ~4.5x180
> degree 2.25" bends for the rear section alone.

Do I need to worry about the radius of the bends?  It looks like the Summit stuff is 6" radius, while Jegs.com has a 3" diameter U-bend with a 5" radius.

Thanks,

Ken