Ive got a 1989 260E and am looking to buy new tires. Ive decided on the Yokohama AVS dB. I want to get the biggest tire that I can run on. So far I dont have any suspension or braking modifications. And I have stock wheels. However, im planning on modding the suspension and getting rims during the future of these new tires. So how big can I go now with what I have now? Thanks.