Edelbrock Supercharger Stage 1 - Street Kit 2007-2014 GM Gmt920/930 SUVS 5 3L w/ o TunerThe Edelbrock supercharger Stage 1 Street System part #15640 for 2007 14 Suburban, Tahoe, Yukon & Yukon XL increases the performance of your 5. 3L Gen IV engine to 384 horsepower and 390 ft lbs of torque at the rear wheels when used with Edelbrock tune (kit supplied without a programmer). 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