Fleece Performance 17-23 GM 2500/3500 6.6L L5P Duramax 63mm Cheetah TurbochargerFleece Performance Cheetah turbochargers set the industry standard for power, quality, and reliability. Designed as a stock appearing, drop in replacement turbocharger capable of much more! With our exclusive 63mm compressor wheel and Inconel turbine wheel technology, youll enjoy smooth throttle response, big top end power, and that classic Cheetah sound! The Cheetah Features: Drop in ready maintains all OEM factory turbocharger functions including