Flowmaster 17742 Header-back 409S - American Thunder Kit - DOR/S - Mod/Agg Sound

Super 44 Series Mufflers for Deep Powerful Sound Mandrel-bent 16-gauge Aluminized Steel Tubing Includes Hangers and Hardware for Installation Moderate to Aggressive Exterior Exhaust Tone Cross member back True Dual Exhaust System H-pipe Crossover for Maximum Power Does Not Include Header Reducers