Stretched bolts visible with "naked eye". I would use stretch gauges & micrometers for rod bolts and the like. And I would also change bolts when doing a head gasket. I think the tolerances in those areas are really critical. Most of us 4 x 4 these road warriors on the pavement in the city. If you will drive it in the woods, then new big as* bolts might make you feel that fuzzy warm feeling.

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Stable: e92is, e46 M54B25, e83 N52, e53 N62 - sold, e39 M54B30 R.I.P.