Coming by way of facebook, Autoblog is reporting that Chevrolet’s Camaro Z28 will be showing itself officially for the first time at SEMA this week. Details on the car are few and far between, but the common rumor/assumption is that the Z28 will be receiving the same LS9 supercharged V8 that powers the Corvette ZR1. However, it’s expected that horsepower will be detuned from ZR1