Some pretty pipes you have there! But are there no tips?
I know every build has setbacks, but to have issues due to lack of attention and care for the details is quite disheartening. Sure your car is fast now, but what happens when an undocumented issue or untorqued bolts comes off when you are driving your car hard?
Hopefully you have had all the kinks worked out and your new shop has double checked everything since you have changed your exhaust!