Cheap Headers How low do they hang?

First and foremost any header I use and any header than any one of my customers uses we put remflex gaskets on them and never get to leak, end of story..
I had cheap headers on my 72 Duster and they hit the ground all the time. The problem was I had the 14 inch rims and tires with low profile tires and a low set suspension. Now I have cheap headers and I have 15 inch rims and a higher setting and not ultra low profile tires and I've never hit the headers in 8 years....