Okay, so i have an 00 s80 t6, have done a few mods so far like a drop, 18" pegasus wheels, double din radio, but my next mod is a custom exhaust. I got a quote from a guy for an exhaust that starts after the downpipe to the tips. No more cats, and 2 mufflers. My question is, if i got straight all the way, no mufflers with a 2.5" dual into a 3" single, would it be way to loud? Because by not getting the two mufflers i'd save around 400$, also, if i keep the stock downpipe ( what's the size of the stock downpipes btw/ ) would they be to small and cause to much restriction of the rest of the exhaust? Thanks for the help.