Munson

How clear/loud will a pair of borla xr-1's be on my car? i'll have le2 heads/le1 cam and some sort of x or h pipe for a true dual setup.. also jet hot long tubes/ no cats. Can someone recommend me sizes or models for these? I am wanting to turn them down before the axle. I want it loud but not extremely loud will these be too loud? anyone have these on their car?