My analysis of this product showed that the build quality was subpar and the tires wore out quickly. the only positive aspect was THE initial low cost. Unfortunately, the low price was not worth sacrificing safety and performance on the road. .
TPM Malfunction shows up. Will not work with BMW F30 (2013 328i xdrive) as advertised. I was unable to get a refund or a replacement as they were already fitted to my new tires.