I'm welding back 2nd cats after riding 3' custom decat exhaust with MG Motorsport muffler ans Vibrant 1792 resonators for over a year.
Too loud and smelly for a daily, but sounds amazing otherwise.
I'm going to try Magnaflow 300 sport cats with double the flow of stockers.
https://youtu.be/6HoIpuWsSo4
Silent mode and warm engine, loud mode on cold start was waking up all my neighbours