I preperation for my JWT CAI that's arriving next week, late last night I hit the local scales and then a nice flat empty half mile long piece of road near San Jose airport to get some baseline numbers. Note these are not *technically* stock, I do have the Kumho STXs in 265/60-18 which are just slightly larger diameter, wider (more drag), and certainly provide greater traction (4wd lock proved unecessary for my slightly brake-torqued launches).