Dyno-BOOST is a fully adjustable, programmed performance control unit designed for all fuel injected sleds, simply wires inline with the factory harness of the IAT (Intake Air Temperature) sensor and into the plug of Oxygen sensor on models fitted with it. You will receive crisp acceleration, much more horsepower and torque, lower quarter mile times and surprisingly increased throttle response. Installation is easy, no - special tools or expertise required. Gain +15-35 additional HP, and extremely dynamic acceleration by up to 30 % in contrast to factory engine performance. It works in conjunction with stock ECU and will not affect engine reliability or endurance. Original ECU program is in process, but the signal of Dyno-BOOST fouls the ECU resulting richer air/fuel ratio, accordingly delivering peak horsepower, torque and acceleration. Dyno-BOOST will supply modified signals to your sled's ECU. The ECU then adjusts air/fuel ratio and secondarily timing advance curves to new performance settings, in addition this MAGNUM upgrade does have an absolutely outstanding O2 sensor control circuit integrated in the unit for those editions fitted with oxygen sensor. This control panel helps to prevent and stop undesired restriction of the ECU. Installation is easy and universal for each model. 1. Locate the IAT (Intake Air Temperature) sensor in the intake. Cut its signal wire and contact the purple wires to the two ends. Direction does not matter. 2. Find the oxygen sensor(s) in the exhaust. 3. Splice blue cables to O2 sensor's signal wire according to the following wiring table. 4. Contact the red cable of doubled wire to the ignition battery + 12V, and the black thread to the ground or battery negative. Magnum Tuning has been dealing with manufacture of ECU upgrades and performance parts since 1994. Our experience warrants peak performance, reliability & perfect style.......... www.carperformance.us