New S300 62/65 Phatshaft turbo for 2004.5-2007 5.9L Dodge Ram. This turbo exhaust flange works with the factory exhaust elbow and downpipe with the 325HP HO engines. Performance tuning and or fuel modifications such as 50-90HP injectors are required to spool this turbo. The waste gate is set to 40PSI to prevent turbo overspeed and head gasket failure.