Our Exhaust is on the louder side. The bends in most systems are muffling the sound. Adding resonators is much less restrictive then adding bends. Some mufflers are just a series of bends to quiet the exhaust, With turbo cars we want the exhaust to have the highest velocity with the least restriction possible for power. I think our system is on the loud side and I have resonators in my personal car. Some people love the loud screaming banshee sound!