Jones Exhaust A4322S-8 Exhaust GlassPack Aluminized Steel 4.00 X 27.00 Stock GlassPack Muffler Straight Inlet / Outlet Diameter 4.00 Inch Diameter Case 27.00 Inches Long Overall Length Core Diameter 3.00 Inch Exhaust Stock Glasspack Inside Aluminized Steel Fits a 3.00 Exhaust Pipe