Exhaust manifold broken bolts

[Lead_sled]

After analyzing the situation, I estimated it would take about 6-7 hours with extracting the bolts. This seems very much in line with what you’re saying. But I also give myself another hour or 2 for first time attempt and the hiccups that go with it. But a professional shop, I guessed should take them no more than 5 hours tops for R&R and another hour or 2 for bolt extraction. Not a full double of 10-14 hours and they’ll see how it goes on bolt extraction.