I don't think you'll need the sensors cuz you'll have more sidewall to see if the tire is low on air. How it will look is up to you. And I think all 4 ps2 tires is more like 1000-1100. If you're talking about saving money...I don't see the math. 1100 for new tires. 1600 for new wheels and tires. 3rd set of tires...the 17's might be 800? how long are you keeping the car? Do it for the looks or performace gain (lighter weight). Most of the mods we do are not cost effective...

1600+800=2400
1100+1100=2200

go with the 18"+19" goodyear F1, which are excellent tires and save about 200 when you need to replace the oem tires.

225 55 is not avail in Pilot sport 2, you'll need to use goodyears and the tire is larger than oem in the rear, so your speedo will be 3% slower than your previous speed (which is an acceptable diff) 60mph shown is 62mph actual