Dyno Day – Testing 2010 Charger before and after Stainless Works Off-Road Long Tube Headers

  Here is our 2010 Dodge Charger Police Package 5.7L before and after Stainless Works Off-Road Long Tube Headers. We ran the car with the following mods: S&B Cold Air Intake DiabloSport Trinity with 93 Octane and CAI Tune Results Max Power: 292.51 whp Max Torque: 332.25 ft-lb all SAE corrected After that we added Stainless Works off-road headers

We ran the car again and with some A/F adjustment, we’ve got:

Max Power: 311.44 whp Max Torque: 356.92 ft-lb Power improvement from Stainless Works off-road headers is 18.93 whp and 24.67 ft-lb Video of the runs