Exhaust manifold repair By hoser..
The exhaust springs have lost their tension and vibrated until they have almost worn through the 
holes on the manifold, they can easily be repaired.

After cleaning I put some copper wire in the holes to keep the weld out.

A few tack welds is all it takes then you remove the copper wire (weld don't stick to it) and dress 
it up on the bench grinder.

Not perfect but it will last for years and beats spending 55 bux on a new one.