If you want to do it once , ceramic coating or hi temp powder coating.Most spray can methods will last on the tail pipes but mufflers and back wil were of after time depending on what the car is driven in ( Rain or dry)
Thanks for all the help here guys. The car is only driven on nice weekends, never sees rain or snow. I may add a layer of Opti-Coat or CQuartz on the chrome and chromoly pieces, as for the mid pipe probably leave as is. If I have problems I will send it to blkGT500nCA to be coated.