Hide Out Muffler Also Includes Thick 3 Bolt Flange. Includes: BUGPACK B2-5570-S Tig Welded Stainless Steel Hide-Out Muffler. Tig Welded Stainless Steel 1-3/4 Merged Racing Exhaust Header. Note: Discoloring Is Not A Manufacturing, Chrome Process, Ceramic Coating Process Or Stainless Steel Defect Issue. High Exhaust Temperatures May Exceed The Capabilities Of Chrome Plating, Ceramic Coatings And Stainless Steel Materials Resulting In Discoloring Or Bluing In Color.