Adverse effects of upsizing rims and tires 2000 323i E46.
OK so I want to go bigger (225/40/18 45lbs) on the wheels (currently at stock 195/65/15... 40lbs), but I wonder how dramatic the effects will be when doing so. Things like burning up the tranny or breaks quicker, or creating extra work for the engine at low gear, and also the effects it has on the on-board computer (speedo, gear shifting ratio, ABS). My Bimmer has 148k so as of now its a finely tuned machine. Should I just keep it that way? Or obviously since there is some debate about this there is actually some truth behind it.
Last edited by bimmeupscotty; 10-05-2013 at 10:33 PM.