The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Automotive Item Grade: High PerformanceBody Height: 4.000 in.Body Length: 18.000 in.Body Width: 9.750 in.Color: BlackFitment: Direct OE ReplacementInlet Connection Type: PipeInlet Diameter: 2.500 in.Inlet Inside Diameter: 2.500 in.Inlet Outside Diameter: 2.500 in.Inlet Position: DualInlet Type: DualMain Piping Diameter: 2.500 in.Material: Aluminized SteelMount Type: Uses New Hangers (Not Included)Muffler Series: 80 Series CrossflowMuffler Type: ReflectionOutlet Connection Type: PipeOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.500 in.Outlet Position: DualOutlet Type: Dual Opposite End OutletOverall Length: 24.000 in.Shape: OvalSound Level: AggressiveTip Quantity: 0Title: Flowmaster 42582 80 Series Muffler - 2.50 Dual In / 2.50 Dual Out - Aggressive SoundWARNING CA Proposition 65: No