This is the optional Complete Tuned Exhaust for the DLE-55cc and DLE-111cc Gasoline Engines. FEATURES: Aluminum construction with natural (silver) finish INCLUDES: Tuned Pipe Header Silicone Coupler with Plastic Sleeve Fiber Gasket Two 5x16mm Header to Engine Mounting Screws Three Clamps SPECS: Tuned Pipe Length: 13.6" (345mm) Tuned Pipe Diameter: 2.4" (60mm) Header Pipe Length: 9.7" (246mm) jxs 10/19/12 ir/jxs