"The Scat Pack factory stage kits can help boost 5.7-liter HEMI performance up to an additional 58 horsepower and 47 lb.-ft. of torque, allowing Dodge enthusiasts to extract the maximum ...

Upgrading to long-tube headers and free-flowing exhaust is another way to shave seconds off the 5.7 HEMI Charger's acceleration times. Exhaust back pressure limits the amount of air-fuel mixture ...