I still have my stock 13" x 4.5" steel rims on my Civic CX but I know someone who has a set of rims he just took off his car that are 16 X 7's. They are a set of aftermarket rims he had on an older 5.0 mustang. Will these work and if so what size of tire am I looking at. My current tires are 175/70/R13. I am in desperate need of new tires and I would like to upgrade my wheels if Im going to be buying new tires.