The Rapid Power module from Bully Dog is designed to increase power and improve fuel economy on farm tractors, construction equipment, RVs and mid sized commercial trucks.  The Rapid Power module increases your engines horsepower allowing you to pull more and move faster all while saving fuel. 

The Cat Rapid Power module works on CAT 3126, C7 and C9 engines from '98 - '05.  It includes three settings, stock, a 15% and a 30% increase in horsepower and torque.  The module can be adjusted in two ways; either by adjusting switches on the unit or via an optional Rapid Power Module switch (Part #40610).