- Oct 4, 2013
Regarding the cracked exhaust.
The road racing types never use clamps because they are too rigid.
One pipe fits into the other pipe and is held in place by probably two springs.
As it was explained to me by a guy who made exhausts,
You hit a bump and the pipes parts a little then you hit another bump and it slides back in the the original position,
Clamped solidly the pipe would fracture.
That plus the stresses caused by expansion and contraction as they heat and cool.