I think I messed up my trans. Long story short, I popped a tire, so I threw on a 16 with my stock 17s as a temp fix. Drove that way about a week and a half. Now that I have a matching pair of wheels up front, at 3/4-WOT my car hesitates to shift for 2-3 seconds then it will slam into gear and scratch the tires in second and third.

Around 2200 rpms it feels like the tras will just free spin and the car gives a stall like feel until I give it more gas, then it'll chirp the tires.

Does anybody have any ideas on what could be the cause before I dump my intercooler fund on a tranny?