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  • Flowmaster American Thunder Crossmember-Back Exhaust System
    SKU: 17120
    • Complete crossmember-back dual exhaust engineered specifically for 1964–1972 El Camino/Sprint V8, 2WD applications
    • 2.50-inch mandrel-bent aluminized steel with a built-in H-pipe for equalized pressures, no deceleration backrap, and maximum power
    • Super 50 Series mufflers deliver a deep, aggressive exterior tone with minimal interior drone
    • 3.00-inch angle-cut polished stainless tips exit behind the rear wheels for an aggressive muscle-car look
    • CARB compliant and includes all necessary parts and hardware for an easy fit
    • Improves throttle response, power, and mileage like all Flowmaster systems