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GMC Performance Header Exhaust Manifold
Header is designed and engineered to maximize exhaust flow and increase both horsepower and torque throughout the power-band. The unique design is the result of more than a decade of racing experience. Our header provide an extremely broad power-band thatís applicable to a wide range of engine sizes and configurations. By maintaining the highest possible exhaust gas speed throughout the header, which improves mid-range power and throttle response significantly.