Dodge Challeneger SRT8 by SpeedFactory

Let the mods begin; as soon as the guys over at Speedfactory received their first 2008 Dodge Challenger SRT8 they went straight to work adding a 5.5 lb supercharger as the first step (Stage 1). According to Speedfactory’s initial dyno results, the 6.1-liter supercharged Hemi V8 delivers 496Hp to the rear wheels, meaning that there should be around 600Hp at the crankshaft.