Ok, replacing my BFG long trail t/a on my '07 Fronty LE CREW with the newer BFG long trail t/a touring tires this weekend. Discount tires wanted to know if I wanted to replace some aspect of the tpms, something about a rubber gromet? I forget if its just the gromet or entire TPMS. Anyways what's the story with frontier owners getting new tires and what I need to know before letting Discount change out my tires. They mention that it costs 7.50/ea for this grommet or TPMS replacement. Don't sound too excited as the OE costs $100/ea.