its a matter of how you, or the previous owner drove the car. You can seriously boost any car at any mileage, but basically the higher it is, just more parts you just have to change out. 60k is small. there are few members that boosted at over 100k. i boosted mine around 42k miles. Also for power wise, if you are at a safe psi and good tune u will be fine. Best bet for the safest way to keep it for a while is auto- have at least vb and hg done. Manual have w58 tranny and hg. this should put you around mid 350.like whats a good millage to boost your car? i want to find another IS300 and turbo that. but like is 60k too much to boost a car? or will it still handle the power for a long time??
thanks in advance