Does anyone know if there is 3" downpipes made for dsm (16G) turbos on civics? Also if I were to bring this to a shop to upgrade the whole exhaust to 3", can anyone tell me how much you think it might be?

****ty thing about upgrading it is, I need a new hi-flow cat, resonator, and muffler because the inlets are 2.5" on the cat, and 2.25" on resonator and muffler on the magnaflow catback.
I'm thinking of getting the same cat (magnaflow high-flow), and magnaflow resonator with a borla muffler. So minus the cost of these 3 things, how much do you think labor and piping will cost me to have this done?

 

my piping/labor was just under $200 i think, minus the res and muffler prices. I'd say go custom downpipe with a flexpipe in there somewhere, i had a shop custom weld mine and it turned out good (on my 14b)