I got 4 Michelin Primacy XC 275/70/18 tires and 4 18" sport wheels off ebay and they ride very hard going down the road. I had the tires rebalanced and it didn't help. Do they make a tire that would be the same size that would ride better than the Michelin?
The "PB" refers to a Ford Power-Boost hybrid vehicle, which indeed has a secondary battery, also known as an auxiliary battery. This second battery is designed to power the hybrid's start/stop system and other accessories while the engine is off.
I cut the muffler off and put a pipe in its place sound good but to loud ordered the vibrant ultra quiet resonator and put that in and now it sounds great and not loud.