Do not buy a press bent system. Huge waste of money.

What's the point of having a 2.5" system if the diameter drops to 2.25" or even 2" on the bends?

Generally if a shop is wanting to do press bends on your custom exhaust I would expect the rest of their work on the system would be sh*t too. i.e. crappy material, poor welds, not using flanges etc