There are different devices for different types of cars.if the wrong product is used,the device will not work.
Iíll give u a simple example.u buy a premium gas car.u put diesel instead of premium gas.what will be the review of that car???
I use the same device that dealers use.do u think a multibillion $ company would sell a fake product?u can put a law suit against them.no company is stupid to do that.
Any one can not install this device.u need someone professional to install this device.some one who knows where & how to install this device.
I have 2 deep scratches on my 2005 corolla.because of the electronic rust protection,I have no rust.the device I install works.
Iím an electronics engineer,so I know what type of circuitry is being used.
In short,the device I install works.and is proven by me.