The lines definitely improved the brake feel on my 2005 Excursion. Note that these lines come with stainless steel brake line washers. I don't think these are good quality stainless steel shims as I've researched online and there have been several instances of them rusting and causing brake failure. This is not good. I used my OEM copper washers front and rear. I've found the back is leaking from using copper washers that are over 10 years old. In between I installed SS Russell. I have ordered new brass washers from Ford and will be replacing them in the rear to keep these washers from rusting and failing. The included stainless steel washers are small and don't provide enough sealing to last in my opinion.