Unless your tpms sensors are broken, they get reused. What they do replace are the rubber gaskets. Most shops charge $3-5 per tire for this.
Road force balancing is a more sophisticated way of balancing the wheel. You'll have to google for details on the actual differences. For most drivers a standard balance is fine.
Yes, you should have the alignment checked and/or corrected to avoid premature tire wear.
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G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring
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