hi i'm john, i live in montreal and own a 00 s80 t6, i've done a few mods, drop kit, pegasus 18" wheels, touchscreen radio, subwoofer. Now i'm getting a custom exhaust done from after the downpipes to the tips. The get wants to go 2.5" dual into single 3" and wants to use 2 mufflers, one at the dual to single and one before the tip. My question is, if i wouldn't use any mufflers and go straight from downpipes to tip, would it be way to loud? Because with no mufflers i'd save around 400$. The whole system will be stainless, but i had a question, are the stock downpipes very restrictive, or they're not to bad? Thanks for the help.