Was looking into buying a set of steel wheels w/ snow tires from an Accord owner. The bolt pattern and offset match, however the wheels are 16". I have a 2011 Mazda 3s Hatch, will I have any fitment problems at all? Thank you for the help in advance.

 

The 2nd gen 3i came with 16x6.5's. You're good to go as long as you're sure the offset is OK.
Stock wheels from a 3i are +50 offset and weigh about 20lbs if I remember correctly.