Yep, they're ugly -- but I assume they are "tuned" exhausts...

Well, it may not equate, but the tuning on automotive systems is done in
the header.
The length and bends of the pipes from the heads to the collectors is
important, but
the length of the exhaust pipes is not.

Hmmm. I thought that new "performance exhaust" system for Cherokees and
Skyhawks had to be "x" number of inches (feet?) long in order to "tune" the
exhaust, in order to increase horsepower "x" percent?

Isn't that why those things are so big, honkin' ugly, hanging out the bottom
of the plane?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"