---tab Description--- Enhance the sonic signature of your truck while also improving its performance with our Diesel Performance Exhaust Muffler. Available in two models: T409 4 inch /5 inch Muffler , you have the power to choose the best fit for your ride. Inlet Diameter: 4.0Inch/5.0Inch Product Features Each of our mufflers boasts an array of features, all designed to deliver superior flow, rich throaty sound, and lifelong protection. Key features include: Straight-through flow path for maximum performance Non-directional design - install whichever way suits your setup Stainless steel construction for lifelong protection Internal stainless steel mesh & fiberglass construction to withstand harsh conditions and advanced technology to absorb unwanted interior resonance. Straight-through design to reduce back pressure and enhance performance ---tab Fitment--- Designed to fit a wide array of diesel vehicles, ranging from For Dodge Ram Diesel to Duramax and Powerstroke. ---tab Shipping & Returns--- Fast Shipping Policy Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy Easy Return Policy Every order comes with a 14-day free return, which means you don't have to pay for a return slip. Click for Return Policy