Unleash your Monster with FlowMonster chambered mufflers. Hidden beneath your ride lies a powerful creature destined to dominate. FlowMonster chambered mufflers create an aggressive exhaust note giving a powerful voice to your car/truck/SUV. FlowMonster mufflers are constructed of 16-gauge aluminized steel and are 100% MIG welded for maximum strength and durability. The chambered design cancels out unwanted frequencies with no packing producing an aggressive exhaust note that will not change with time. FlowMonster mufflers are coated with high heat resistant silver paint for an aggressive look under your car. Produces an Aggressive sound 2-Chamber Internal Design Cancels out Annoying High Pitch Frequencies Dual inlets, Single outlet Increases Exhaust Flow for Increased Performance and Excellent Throttle Response Constructed of Durable 16-gauge Aluminized Steel MODEL NO - 425403-FM