header help??

my cheap *** junk hooker headers look brand new on the bottoms and it didnt take me any longer to change my plugs than it normally does and my plug wires look brand new and they dont leak what-so-ever.i drive this duster everyday, and the paint on them is just as good as the day i put them on. i just dont see why so many people have such problems with them. these are the uncoated, small block hookers that were 179 to my door.there are these adjusters that put pressure on the torsion bars that allow you to adjust the ride height, and unless you have the front bumper scraping the ground, there is no reason they should scrape. my K member is four inches off the ground ,and my junky hookers never scrape, and i have 6 cylinder torsion bars with a small block in it, with worn out gabriel shocks on the front and i have 145/75r bug tires on 15x4 rims on the front ......pick the front end up some, replace your old shocks, whats the problem?