CUMMINS QSB4.5 148 All
Below is the list of all available engines for your CUMMINS QSB4.5 148 All. Choose the engine of the CUMMINS QSB4.5 148 All you are working on and see the power and torque gains after using our tuning file.
Our tuning files for CUMMINS QSB4.5 148 All have been installed on thousands of vehicles, so they are tried and tested, completely safe, but also wonderfully effective.