First, the device works. This will prevent your backup sensor system from failing and failing. However, they are NOT as good as OEM units. I put them on one side of my Titan and they work, but they're about half as efficient as the other side with OEM units. Is it worth spending money on OEM? it depends on you. Personally I'd prefer the OEM range, heck it might save you money compared to them if you stumble upon something.