SYS 67-72 GM TRUCK 4

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.

Additional Information

Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel

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

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information