Some bolts are tightened using "angle torque" but not necessarily TTY bolts.
Cylinder head bolts, when you compare old vs new, they are different, the old ones are longer from stretch.
The stiffening plate bolts, they are big and fat, very much like a wheel lug. They don't elongate with tightening. They will never break if you torque them properly.
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1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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