The tuning experts at SpeedFactory perfected their version of the new Dodge Challenger SRT8 with an output of over 600 HP, not including a supercharger. With a normal Challenger puting out around 425 Hp, SpeedFactory’s tuning package boosts power by nearly 175hp. To accomplish all this, they took the cars standard 6.1-liter Hemi, bored it to 7.0-liters, and then added a stainless steel exhaust from Corsa and custom Comp. Hydraulic cam with an 85mm throttle body and CNC stock manifold were installed next.
With all upgrades complete, the SpeedFactory Dodge Challenger SRT8 produced a massive 595-605HP on the Dyno with 91 octane fuel. The SpeedFactory mechanics also threw in high performance springs, a new clutch, struts, sway bars, and eye candy 20-inch BBS wheels surrounded by high performance Michelin Pilot Sport PS2 tires. For a personal touch, SpeedFactory added their own leather seats and door trim along with custom floor mats. The Dodge Challenger SRT8 has a list price of $73,900.