Are you looking to do any of the following for your Cadillac XTS?
1. Improve engine horsepower by 15%
2. Improve low-end and mid-range torque
3. Pep up acceleration
4. Improve fuel economy by up to 6%
5. Smooth out throttle response
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%.
Manufacturer Part Number: EVO-TECH-AUTO-11447