What is a “hybrid” turbocharger?
A “hybrid” turbo uses parts from two different families of turbochargers to create a completely new turbo to meet a specific need. This can be done with the same brand of turbos, or two different makes can be combined to form something totally new. An example is the T3/T4. This turbo uses T3 turbine parts combined with T4 compressor pieces to make a turbo that fits a certain horsepower and displacement range.