This Hypertech tuner was in my 2009 Charger with a 5.7L Hemi. Will work in a 2009 or 2010 Charger with the 5.7L Hemi. Just plug it into your OBDII Diagnostic port. Get 25 extra horsepower with premium fuel and 20 extra horsepower with regular unleaded. The tuner was cleared from the Charger it was in and it's ready to power your vehicle. Plug and play!