Dodge + Chrysler computer programming Charger/Challenger/C300 Models 2009-2014 Models 2015>> and above require code unlocking Speed limiter removal RPM unlock Burble (popcorn) Fan programming Air-fuel mixture tuning Spark timing adjustment Throttle response O2 sensor removal MDS system deactivation (four-cylinder - eight-cylinder) And anyone who programs a full performance tune Includes spark plug condition check, smoke test for intake leaks, and fuel pump pressure test.