ok heres what i got. i just received me pace headers and installed them. the headers came with a white paper like gasket so i installed it. the only fittment issues i had was the cat to the header. so i cranked it up after everything was in place and tight and it started blowing smoke like it was burning the gasket or something. my friend said that the gasket prob has a material that has to heat all the way up and then it seats, plus and the oil in and on the headers. but i can always use more tips for trouble shooting

 

im sorry but, next time you should do some research before purchasing products, theses headers have had nothing but trouble, expect to blow a hole threw, or warp the mounting plate in about year. I would try to get your money back.