After reading all the posts about new brakes, chips, short shifters etc was wondering if all these are easily reversible and what impact they have on resale value and warranty. I must admit I would steer clear of an M5 with these mods as I would assume it had done lots of track time. Any thoughts?
The M5 contains flash memory, which I understand is hardwired in. Any downloads overwrite the flash, so "keeping" the original memory contents will consist of returning it to the dealership to bring the contents back to their original state.