@MalcolmM All I can say is that I will never touch the seam and have done insert replacements for friends who are well aware the calibration of the seat on the cushion will be altered. I in no way would do any airbag seam sewing.
i repaired a seat that an airbag blew apart. sewed it back up by hand using thinner thread, but the thing is the man already cut the airbag out. damage was already done.
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