The Edelbrock E-Force Supercharger Stage 1 Street System part # 15600 for 2007-10 Silverado and Sierra HD 2500 increases the performance of your 6.0L Gen IV engine to 424 horsepower and 431 ft/lbs. of torque at the rear wheels when used with Edelbrock tune (kit supplied without a programmer. HANDHELD PROGRAMMER NOT INCLUDED.
