The replacement compressor wheels allow increased spool-up, throttle response and overall airflow. The truck will have a much broader torque curve and increases in HP. HP & TQ can vary depending on the applications setup and RPM, but you'll feel the additional power in areas you’ve never had before.
The 2004.5+ 6.0L factory turbos tend to perform better down low than the early 6.0L’s, but they are also much quieter than the early trucks. The Bullseye Power Drop-in 6.0LS BatMoWheel will surely bring the sound your looking for as well as the spool-up, throttle response, and efficiency.