No i haven't had it remapped, i was told that the standard ECU couldn't be mapped. Once headers, de-cat & induction is done then a different ecu would be required. I'm not to sure about ECU's to be honest but i did ask the question. It's totally standard apart from the exhaust.
As for pops & bangs, don't know mate, they've always been there & i can't make them go away!