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  • Flowmaster 817940 67-72 GM TRUCK 4WD AMT XMB DOS/R - mbenzgram
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Flowmaster 817940 67-72 GM TRUCK 4WD AMT XMB DOS/R

SKU: 817940
Regular price $749.95
Regular price $834.00 Sale price $749.95


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  • Crossmember-Back Design Works with Stock Manifolds or Headers, Allowing More Application Options
  • 16-Gauge, 2.50-Inch 409 Stainless Steel Pipes add Durability and Strength
  • Super 44 Mufflers Deliver Increased Performance and an Aggressive to Moderate Sound LevelÂÂÂ
  • Three Different Tailpipe Exit Options Allow You to Tailor the Look of the Kit to Your StyleÂÂÂ
  • Mandrel-Bent Pipes Help to Maximize the Exhaust Flow for Better PerformanceÂÂÂ
  • H-Pipe Style Crossover Helps Exhaust Gas Scavenging and Reduces DroneÂÂÂ
  • Includes Hangers and Hardware for InstallationÂÂÂ
  • Lifetime Limited Warranty


2.50” Dual Exhaust System for 1967-1972 GM 4WD Trucks with V8 Engines

Give your classic 1967-1972 GM 4WD truck the sound and performance it deserves with Flowmaster’s new stainless steel American Thunder exhaust system. This system allows for three different tailpipe exit options so you can get the look you want! Click here for a direct link to the product webpageThis Flowmaster American Thunder dual exhaust system is specifically designed for 1967-1972 Chevrolet and GMC K10, K15/K1500, K20, and K25/K2500 4wd trucks with V8 engines. The system is perfect for the person looking for an aggressive to moderate interior and exterior sound level. Starting at the crossmember-back, the exhaust comes complete with a built-in H-pipe crossover for better exhaust scavenging, all mandrel-bent 2.50-inch stainless steel tubing, a pair of Super 44 Series performance mufflers, and your choice of three tailpipe exits (Turndown behind rear tires, side exit behind rear tires, or straight out the back under the bumper). The system includes all hardware necessary for installation and is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks

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