Hey i had mine straight pipes in the back with cat and stock y-pipe and it give it a little more rumble but it was not too loud. And now i have added the sho off-road pipe and it has a very nice rumble at idle but as you get own it. It gets real loud and the higher the rpms the higher the pitch gets and the rumble starts to go away, but its not loud until you step on it. Not to much drone when cruising. If anymore questions just pm me.
