Edelbrock 1579 Stage 1 Supercharger for 2007-2013 Silverado/Sierra 6.2L W/ TuneEdelbrock Stage 1 Supercharger #1579 For 2007 13 Silverado Sierra 6. 2L W Tune The Edelbrock supercharger Stage 1 Street system part #1579 for 2007 13 Silverado and Sierra 1500 increases the performance of your 6. 2L Gen IV engine to 407 horsepower and 434 ft lbs of torque. The core of this system is the Eaton Gen VI 2300 TVS rotating assembly with a four lobe design with 160 degrees of twist for maximum flow, minimum temperature rise and quiet