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Flowmaster 817940 Crossmember Back Exhaust Kit 2.5 Inch 409 Stainless Steel Compatible with 1967-1972 Chevy/GMC K10, K15/K1500, K20, K25/K2500 4WD V8

5.0 (2) Write Review
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$792.95

$ 99 .00 $99.00

In Stock
  • 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 Level
  • Three Different Tailpipe Exit Options Allow You to Tailor the Look of the Kit to Your Style
  • Mandrel-Bent Pipes Help to Maximize the Exhaust Flow for Better Performance


Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel. 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.. Manifold down pipes and header reducers not included. Fits both long and short bed trucks.


Customer
Reviewed in the United States on October 30, 2024
They fit my 1972 GMC with little modification
Kevin M
Reviewed in the United States on September 25, 2022
I took a chance on this, I have a 70 blazer, so it wasn’t technically for my vehicle but I made it work. As the seller states, this is for pickup trucks, I knew this going in. Had to cut a lot off some of the straight pipes but it all fit and sounds great.