Been playing around on the old girl, (2009 flht),, waiting for bits and pieces to arrive for other things...
Been messing around with exhaust gaskets over the years cursing and swearing .. Installing stock gasket as I have stock header pipes..
Been told many times to put them in the freezer, but always needed to install them staight away ....
Now if you have the time,, put them in the freezer overnight,,, ( I left them in for 2 nights),,, Make sure exhaust port is clean etc,,, a little wd40 on a rag and wipe, (not to much, you dont want it smoking to much when you fire her up),, around the gasket surface area in the port ,,,, A wipe of wd40 around the gasket ,,, Just with fingers, push the gasket in square,, push around the gasket ,,, Bingo,, pops in like a finger in the bum !!!!!! Finsh up (again) , with wd40 on a rag, and wipe around and clean up the exhaust studs for easy header nut install..
I fucking love WD40 !!!!!!!!
Leave them to defrost for a day! Where the fuck do you live, Antarctica?? About 15 minutes at room temp should be right.