I think that this confuses the question that is being asked. It is my understanding that turbora28 is asking about a "Hybrid" brand turbo. Not a hybridised turbo made from interchangeable components from the same manufacturer. If someone is selling under the "Hybrid" name, then that would be very a very clever marketing strategy - of course every one has heard of hybrid turbo set ups using T3 and T4 components (or whatever other turbo combinations you can run off the top of your head).