The fully mechanical 3-Stage VGT Turbonator Turbocharger for the Cummins engine. On the low-end the DPS Turbonator® spools up quickly like a small turbo and on the top-end it opens the stators to allow maximum airflow and performs like a much larger turbo. The Turbonator will help you get that heavy load moving and keep it moving even when you hit a grade, while keeping EGT's in check. It will reduce low-end smoke while improving low end torque and power. It reduces smoke because it burns more o