Help- Replaced exhaust gasket and it still leaks! GS1100

[1tinindian]

I have been going through the old post and haven't turned up anything that leads me to an answer.
I pulled my stock exhaust off for some detail work and upon replacing it, the exhaust had a leak at the head, (where it didn't before) hard to tell what port(s).
So I ordered factory Suzuki gaskets and installed them after removing the old ones, tapped out the bolt holes, ran a die down all the bolts
and used a small dab of anti-seize on the bolt, torqued them according to the factory service manual to 7-11 ft. lb.
Test ride proved excellent performance, rechecked torque and still a slight exhaust leak can be heard at throttle up.

My question is, have I missed a step?
I don't want to keep cranking down on the bolts too much in fear that I might break one.

Do I pull it all apart and try again, add a second gasket, some kind of sealing compound???

I'm at a loss right now and require expert advice.
Thanks,
Leon

[alke46]

So much for using the search method........I have this same problem and thought I might get the answer I was looking for but alas, it appears no one bothered to answer this guys question from September of 2018.

[Grimly]

Hah. Tightening the exhaust nuts is a monthly kneeling exercise for the devoted.
If you get it just right, use just the right amount of exhaust paste (either firegum or exhaust silicone), then get the washers crushed just right, the interval between installation and first re-tightening devotional duty might be as long as a year.
These bastards have an exhaust fire explosive demon lurking in them, that demands constant tribute if you annoy it.