It is possible to electronically tune a Toyota Camry Hybrid without ever changing its physical characteristics. This is accomplished by remapping engine characteristics using an OBD-II scanner or the engine control unit; using this technique, the driver can alter power output, fuel efficiency, etc.
Some components may need to be physically altered, added, or taken away in order to enhance the handling and performance of a Toyota Camry Hybrid. One of the most popular mechanical improvements made to the Toyota Camry Hybrid is the installation of an upgraded intake or a cold air intake to increase horsepower.