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If you just want a little power with minimal affect on fuel economy, you could try a tuner, and go with new stock AD injectors for your rig. They are capable of quite a bit.
Many here have that setup, and do the work of making sure the rig is 100%, eliminating boost and pre-turbo exhaust leaks, all sensors reading properly, air eliminated from the fuel system with hutch mod and possibly a regulated fuel return, good intake and post turbo exhaust. If needed to cure turbo surge, a new compressor wheel can be added.