This Tailpipe assembly features Bright Chrome tips on T-304 stainless steel and fits either the 60637 or 60638 mid-muffler assemblies or original equipment mufflers. Includes heat shields on pipes. Built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit