Depends on what you are looking for. I went to exhaust dynamics for a quote - $2.5k would get me some hand bent pipes for the GTV6... instead I ordered CSC headers from the UK and took them to a local fitter who installed them for me. EB Spares shipped super quick (like 4 days from ordering to my doorstep) and waaay cheaper than anything from the US.
I then decided that I wanted to take out the resonators and just go straight pipe so took it to a different exhaust shop and they cut out and welded in new sections and all is good.
There are plenty of shops out there that can help if you want to just patch up, or they can install or the specialist shops like exhaust dynamics can build a custom exhaust... I just used google to find the various shops.