FASS Titanium Signature Series 250F 220GPH Fuel System for GMC/Chevrolet 2020-2023 Duramax 6.6L (700-900HP) Cooling~Radiators you get the benefits of Turbo size:Billet S472/83/.90 50-74004 No Fuel Injector Lines

you get the benefits of the smaller quicker spooling turbo AND more top end power from the larger turbo

added a bigger turbo

This product MUST be used in conjunction with custom tuning

and increased engine RPM can quickly max out the capabilities of your stock pushrods causing flex that leads to valvetrain damage and power loss

and less prone to degradation than the factory rubber Cummins coolant hoses

FASS Titanium Signature Series 250F 220GPH Fuel System for GMC Chevrolet 2020 2023 Duramax 6.6L (700 900HP) Cooling~Radiators you get the benefits of Turbo size:Billet S472 83 .90 50 74004 No Fuel Injector Lines you get the benefits of the smaller quicker spooling turbo AND more top end power from the larger turbo added a bigger turbo