Um..hmm
Ok so you did say the vibs went away with the new tires yes?
I mean technically if your wheel is bent, you may or may not feel it in the steering wheel, but you said your old tires will fairly heavily worn so that's prob why you did and don't now. If it's a stock wheel, good thing is it can be replaced.
Again, do you have confirmation there is an actual issue with your subframe? Cracks, something popped.. I mean I'm not that well versed on wtf could happen to make a subframe actually fail..
A new wheel would def undersell the fuck out of a new subframe thou
