Like the title says will this fit on my GD3 with Swift springs running 195/50/15? I do want to go 205/50/15 will this work also?

 

you'll need 195/45...from my experience with my SSR Reverse Mesh 15x7 +13

 

x2... need smaller tires for sure. And a bit of camber.

This is 15x7 +19, with -2.5 deg camber in front, and I think it was around -2 in the rear (don't have shims to adjust camber in the rear). Running 165/55R15's though.