I've upsized large 4 filter caps on Accuphase E202 integrated amp on capacitance, temperature and voltage. The idea is to keep discharge time relatively similar. If the FACTOR of discharge time goes like 2...3x faster through the resistor, you'll need to replace it to the larger resistor. In my case the difference was tolerable only by 12% faster. Therefore I didn't change any other circuit components.
