The AFE 46-60100 BladeRunner Street Series Turbocharger for your 2001-2004 GM 6.6L Duramax LB7 is the perfect solution to replacing your factory turbocharger. Designed to be a bolt-in replacement, the AFE BladeRunner has been dyno tested to increase horsepower, without the need for additional fueling! Compressor:  The A356 aluminum housing utilizes OE inlet and outlet connections.Turbine:  The one-piece ductile iron turbine housing will bolt to OE and aftermarket inlet and outlet connections. Direct Replacement:  This turbo can be installed on 2001-2004 V8-6.6L (td) LB7 and is a direct bolt-on replacement. All connections to the vehicle are compatible with the OE geometry, resulting in a quick and reliable connection. Additional fueling is not required for improved performance over OE, but maximum gains are achieved with fuel system upgrades.Turbo Specifications: Compressor Inducer - 60.6mm Compressor Exducer - 81.9mm Compressor Blades - 10 Turbine Inducer - 67.8mm Turb