ok i about to cut my cats off, right after the exaust manifold, right next to where i could unbolt it off, and am gonne end at the end of the large cat, were the other bolt off point is, but i need to know how thick are those pipes? am i gonna be able to cut threw them with a 1.25 inch cutt off wheel? and am i going to be able to weld on to that point?, just kinda stuck and i got to let em cool off a bit first, thanks!