I haven't seen the exhaust for a 2014 Aurion, i recently got the exhaust done on my 2007 Atx got a resonator delete and muffler delete with hotdogs and new tips.
cost me $480 for the lot, sounds great is quite loud and does drone up hills. Might be worth taking there offer and getting the resonator taken out but might drone, guessing they
charged that since they most likely hadn't done one before.