The LLY Promax is basically your stock turbocharger on steroids. Built specifically for the 2004.5-2006 LLY Duramax, this turbo is perfect for the 400-625rwhp market looking for better EGT control with a much broader power and torque band to work with. This turbocharger is a direct replacement to the stock unit, with no other changes to the truck required. Improved air flow from our 63.5mm 7-blade FMW compressor wheel along with a high flow 10-blade turbine wheel for better drive pressure control without sacrificing spool-up makes this the ultimate bolt-in upgrade.
Built transmsision, EFI Live tuning and a lift pump will help reach it's maximum potential.