Hooker 21502HKR Aero Chamber Muffler Single 2-1/2" Offset Inlet Single 2-1/2" Center Outlet 4-3/4"H x 10-1/4"W x 14"L 16 Gauge Aluminzed Steel Case Reinforced Inlets and Outlets Stainless Steel Perforated Plate eliminates Internal Rust