Home » Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Flowmaster

Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System

SKU: flo817940
Out of stock
$1,049.95

Ready to install and hit the road!

All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!

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This 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. Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel Manifold down pipes and header reducers not included. Fits both long and short bed trucks.
  • Crossmember-Back Design Works with Stock Manifolds or Headers, Allowing More Application Options
  • Three Different Tailpipe Exit Options Allow You to Tailor the Look of the Kit to Your Style
  • Super 44 Mufflers Deliver Increased Performance and an Aggressive to Moderate Sound Level
  • Mandrel-Bent Pipes Help to Maximize the Exhaust Flow for Better Performance
  • 16-Gauge, 2.50-Inch 409 Stainless Steel Pipes add Durability and Strength
  • H-Pipe Style Crossover Helps Exhaust Gas Scavenging and Reduces Drone
  • Includes Hangers and Hardware for Installation
  • Lifetime Limited Warranty

Fitment:
1967 Chevrolet K10 Pickup
1967 Chevrolet K20 Pickup
1967 GMC K15/K1500 Pickup
1967 GMC K25/K2500 Pickup
1968 Chevrolet K10 Pickup
1968 Chevrolet K20 Pickup
1968 GMC K15/K1500 Pickup
1968 GMC K25/K2500 Pickup
1969 Chevrolet K10 Pickup
1969 Chevrolet K20 Pickup
1969 GMC K15/K1500 Pickup
1969 GMC K25/K2500 Pickup
1970 Chevrolet K10 Pickup
1970 Chevrolet K20 Pickup
1970 GMC K15/K1500 Pickup
1970 GMC K25/K2500 Pickup
1971 Chevrolet K10 Pickup
1971 Chevrolet K20 Pickup
1971 GMC K15/K1500 Pickup
1971 GMC K25/K2500 Pickup
1972 Chevrolet K10 Pickup
1972 Chevrolet K20 Pickup
1972 GMC K15/K1500 Pickup
1972 GMC K25/K2500 Pickup


Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1