architectmc

I have a 99 Porsche 911 Carrera Cabriolet and want to go from 18" turbo twist (stock) to 19" Champion RG5B wheels with Michelin Pilot Sport tires. I was told that I can not do this combination?! Would appreciate any and all feedback. I want to get the largest wheels and fullest tires possible on the car to fill out the wheel wells better. Why can this combo not be done? Is it an issue with rubbing?
Also, anyone got a good price on this combo?
thanks