Copper slip exhaust stud nuts torque

[fazersharp]

10Nm is basically hand tight like Bretty did so you should be fine. Have you got a torque wrench? You could tighten another bolt into something else to get a feel for what 10Nm is if you're worried.

Yes I do have a torque wrench, that's not the issue the issue is with the copper grease distorting the point at which the correct Nm is reached - ie they will be over tightened with it.
 

Duralac would be a better addative to different metals in situ,copperslip adds to the reaction

That sounds interesting and I will look into it

Whatever you end up doing, keep on checking the bolts for a couple of weeks as vibration, heating and cooling tends to make them come loose again until the headers are eventually bedded properly and settle down in place.

I have not disturbed the headers but just took off the nuts and collars after weeks of soaking as I may soon want a new set of pipes and wanted to bite the stud bullet before I HAD to.