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...
Finally, went to dyno tuned my 7AFTE by using emanage. Found out i was running freaking rich whn offboost. I was being told my injector was too big for my setup as Im using GZE 365cc injector