Keeping you Ready for the Road Ahead , the Dorman DPF Exhaust Clamp is a direct replacement with OEM fit, form, and function. Made of stainless steel, this heavy duty clamp boasts of high-strength coupling for diesel particulate filters. Properly securing your DPF, which is responsible for removing up to 85% of soot in diesel exhaust emissions in on-highway and vocational heavy duty trucks, is paramount. This heavy duty DPF clamp is an easy choice to keep you on the road ahead. FleetPride is your First Click in Heavy Duty .