Since u r a heavy footer(untill brake pad crack), go for the higher temp is the only way... note that the more temp it withstand the more it scream when cold... really scream...
to anyone who has gsr under their hood, i heard from a fren who told me that he changed his intercooler to a vr4 intercooler and the pipping is stainless. everything else is stock like turbo td04, injectors...