The Garrett PowerMax turbocharger upgrade for the Chevrolet and GMC 6.6-liter LML engine platform is engineered to increase engine performance while maintaining OEM installation specifications. This direct drop-in stage one upgrade provides 19-percent more flow than OEM and will support up to 600 wheel horsepower. Improvements in efficiency and flow can be attributed to the lightweight forged fully-machined compressor wheel. The boost response of this PowerMax turbocharger compared to OEM has not been tested. This turbocharger is interchangeable with the OE hardware to ensure a perfect fit every time.