About this item

• This device is compatible with most GM V6 and V8 engine vehicles trucks,and parts of chevrolet cadillac buick holden pontiac saturn car vehicles
• This device will keep the vehicle in V8 mode all the time,keeping your car in full cylinder mode all the time, no more shuddering or dropping cylinders
• Plug the device in and it instantly begins working to disable the AFM DFM system,please unplug the device when you do not use the car for a long time
• It won't program the ECU of the vehicle, and won't affect other functions of the vehicle,but modified vehicles are cautious to buy
• Note: keeping V8 mode the water temperature maybe increase during driving, device is not compatible with 2019-on Silverado and Sierra models with 5.3L/ 6.2L engine and 10-speed transmissions