What are some common problems with GForce performance chips?

The common problems associated with GForce performance chips include, reduction in mileage, engine malfunctions and interference with the car's built-in computer. While it is designed to improve the performance of the engine, the majority of users complain that they have encountered many problems with the device.

The GForce performance chip claims it could increase gas mileage by 4 to 7 mpg, reduce emissions by 25 to 40 percent and add 60 horsepower to any car as of 2015. However, the device does not contain any software, is yet to be tested and has not shown any evidence of improving the performance of the car's engine.