This is in the category of the IT help desk asking if you have rebooted your computer, but simple things first... is the air pressure equal in the front tires? Any chance one of your new tires has a weaker sidewall than the other?
Beyond that, no solutions, but more troubleshooting ideas... take a friend for a ride leaving your jack, jackstands, and gloves ready (and maybe a second friend).
Get things up to temp. Park it. Jack the front end up to get both wheels off the ground, then turn each front wheel while your friend slowly depresses the brake. If the left grabs first, you know it's grabbing early (or the right is grabbing late).
If they grab at the same time, is there any way you could you have a more friction between pad and rotor on one side over the other? Are the pads the same type and age? Same question for the rotors. Did you spill any fluid on the right rotor? Perhaps try swaping the pads from the left side to right to rule out the pads (if that is possible on the stock brakes)?