The Edelbrock E-Force Supercharger Stage 1 Street system for 2007-13 Silverado and Sierra 1500 increases the performance of your 5.3L Gen IV engine to 364 horsepower and 397 ft/lbs. of torque at the rear wheels. With the 4.8L Gen IV engine expect an increase to 334 horsepower and 380 ft/lbs. of torque at the rear wheels when used with Edelbrock tune (kit supplied without a programmer). Keeping the air cool is a high capacity air to water intercooler and low temp heat exchanger. HANDHELD PROGRAMMER NOT INCLUDED.
