I'm assuming as long as my new tire diameter is within 3% I can use non-TPMS wheels (and just put up with the warning dash light staying lit).
Anyone have problems w/ their car after doing this. I know I've read some other threads on this but the search was taking forever
Thanks for help w/ this.

 

If the new tire diameters are similar between the front and rear, then the actual SIZE doesn't matter.

TPMS is completely "optional", and is only there to be informatory.

 

Perfect! The tire sizes are the closest in diameter I've found~
Stock 225/55/17 and going to 245/35/20, the diameters are 26.74 & 26.75" respectively, almost a perfect diameter match
Thanks for the help!