98-02 Cummins 5.9 Smarty S-03 Tuner Cooling replaces stock or a shimmed

replaces stock or a shimmed pressure relief valve

Engine Timing & Fuel Curves for Maximum Performance while maintaining the factory reliability & drivability

all while adding a sleek

Installing or using this part on any emission-controlled vehicle

98-02 Cummins 5.9 Smarty S-03 Tuner Cooling replaces stock or a shimmedCaTCHER & Revo software's insideTen different performance levelsAdjust Speed Limiter, Torque Management & Injection Timing Fastest download in the industry, a typical ECM update takes less than two minutesABS tire height updates in just secondsNot traceable in the stock setting. Smarty leaves no footprintCold weather 3 Cylinder High Idle is enabled in all softwaresReads Diagnostic Trouble Codes in plain textNo tools required, no fuses to pullUSB built