MAGNUMTUNING FACTORY EVO-Tech is a fully adjustable, VEHICLE SPECIFIC fuel controller featuring an in-dash remote, designed for all fuel injected cars controlled by ECU, simply wires inline with the IAT (Intake Air Temperature) or MAF/MAP sensor & plugs into the Oxygen sensor(s). EVO-Tech tricks the ECU thinking the intake air much more cooler, then the ECU will send more fuel for a richer mix besides the state of the art oxygen sensor overriding circuit incorporated blocks restrictions effected by the ECU. It allows you to fully adjust the Air Fuel Ratio (AFR). Peppy acceleration, 15% extra horsepower & torque, lower quarter mile times & fine throttle response. Even people who are not technical minded will find, kit is not difficult to install just needs 60 minutes. It will not affect engine reliability & endurance. Remap factory engine or calibrate engine management to any performance exhaust, intake, etc. preinstalled. EVO-TECH increases HP by adjusting AFR between 12.7 & 14.7. Set advanced fuel trim, dialing a screw. Adjustment needs no expertise. Injection is controlled in multiple ways. Chip modifies signals being read by the ECU, resulting adjustment to the AFR then again it monitors & overrides the O2 sensor signal accordingly the chip does not allow ECU to restrict the air/fuel ratio just has been fooled. Though performance chips are not especially for economy improvement & basically supposed to gain more HP, the module does improve MPG in case of everyday driving manner. When modifying air fuel ratio, slightly at the expense of emission & noise level, efficiency of combustion is improved & you SAVE FUEL by up to 6%. Magnum Tuning has been dealing with manufacture of upgrades since 1994. Magnum's experience warrants peak performance, reliability & perfect style. Magnum Parts are made in Europe & covered by 10-YEAR WARRANTY.