I changed the exhaust on my 1970 Chevelle and needed new brackets. I had custom old exhaust brackets welded to the clamps so I had to replace them. The adjustable brackets made the install smoother than any other install I've done. I didn't have to cut anything, weld anything or anything like that. Just adjust the height and tighten the nut. It's better than going to the exhaust shop for something that small. Definitely recommend to anyone who needs a custom tailpipe hanger.