Edelbrock E-FORCE Supercharger Stage 1 Street System [TVS Series 2300 | HP 424 | Torque (Ft-lbs.) 431 | No Tune] (2007-2010 Silverado & Sierra 2500 HD 6.0L V8) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS