Calibrated Power Stealth Mach 1 (64mm) Turbo 01-04 GM 6.6L Duramax LB7 II-0433171924DFLY without taking your eyes off

without taking your eyes off the action

Monitor vital engine data

along with premium head studs to prevent future head gasket failures

Helping with stronger gear engagement

This construction allows for a proper OE style fit with excellent filter strength

Calibrated Power Stealth Mach 1 (64mm) Turbo 01-04 GM 6.6L Duramax LB7 II-0433171924DFLY without taking your eyes offIt's still a direct drop in, bolt on stock appearing replacement but with features you won't find anywhere else. The 64mm Mach1 turbo from Calibrated Power improves power, towing potential, and overall performance through a custom designed high flow turbine assembly, a billet compressor wheel, and 360 degree thrust bearings. The larger turbine assembly allows for lower drive pressure, creating a better balance between boost and drive (exhaust