xpipe location

Instead of spray paint, you can do it this way, when the exhaust is cold, take a wax pencil (the yellow ones that you mark parts with) and draw a line on the exhaust pipes from the header flange back. Take the car for a good rip or two down the road, dont drive for too long, maybe 5 mins or so. Then look at where the wax pencil mark stopped melting and start the x pipe there. The spray paint way will work too, but its a little messier than a wax pencil.