Pacbrake's DirectMount 4'' PRXB High Performance Exhaust Brake ONLY for Dodge RAM 2004.5 - 2007 Cummins 5.9L ISB 24 Valve Engine with Standard / 48RE Automatic Transmission and Dodge 2005 - 2007 with Standard Transmission. UPGRADE. Replaces Fixed Orifice Exhaust Brake. For Standard Transmission, Switch Pac : Optional (Pacbrake Part Number C18042) for Dodge RAM 2004.5 - 2007 Cummins 5.9L ISB 24 Valve with Standard Transmission. ECM Bypass : Optional (Pacbrake Part Number C14037) for Dodge RAM 2004.5 Cummins 5.9L ISB 24 Valve with Standard Transmission, ECM Bypass : Optional (Pacbrake Part Number C20135) for Dodge RAM 2004.5 Cummins 5.9L ISB 24 Valve with Standard Transmission, ECM Bypass : Optional (Pacbrake Part Number C20141) for Dodge RAM 2005 Cummins 5.9L ISB 24 Valve with Standard Transmission. ECM Bypass : N/A for Dodge RAM 2006-2007 Cummins 5.9L ISB 24 Valve with Standard Transmission. For Automatic Transmission - Switch Pac : Not Applicable, Transmission Controller : Not Included for Dodge RAM 2005 Cummins 5.9L ISB 24 Valve with 48RE Automatic Transmission, Transmission Controller : Not Applicable for Dodge RAM 2006 - 2007 Cummins 5.9L ISB 24 Valve with 48RE Automatic Transmission
- All above DirectMount 2003-2007 kits will NOT work with Banks Turbo Back Monster® Exhaust. However, they will work with Banks Cat BackMonster® Exhaust. Applications for aftermarket turbo chargers, please contact Pacbrake for further kit information: 800.663.0096. EXHAUST BRAKE ONLY.