Yes, they are the performance pkg wheels.
Driving is as stock, but I have the coilovers set just a little on the firmer side than stock. Car is lowered only 1-1.5" from stock. But with the BC coilovers you have adjustability for softer or firmer as the driver likes. I prefer a sportier ride, so I went just a tad firmer. As for the speedo, these tires on the front are maybe 3/16"-1,4" smaller in total outer diameter, so speedo is fairly spot on. And the GT wheels/tires were a direct bolt on for me! Oh, and don't forget to take into account " wheel offset" It can play a big part in how far the wheel/ tire stick out.Love this set up. How is the driving ? is the speedometer that much off? Im looking to get 19x9 or 18x8.5 still on the fence about it.