RLS exhausts are anything but your everyday treat. That is, if you don't happen to have one installed on your bike.
While the RLS cans are definitely not street-legal in all countries due to their emissions and especially noise levels, they're providing a beastly character to any bike and are great on a track day.
In fact, customers get a very short, very light and very loud exhaust, improperly called "silencer", by all means. The power increase is not astonishing (stock mapping delivers 2 extra HP or so), but the sound is. And if you need further proof, here's a Suzuki Hayabusa with a RLS Predator can, having freshly replaced a Brock Alien Head. Predator vs Alien, properly done the bike way.
In fact, customers get a very short, very light and very loud exhaust, improperly called "silencer", by all means. The power increase is not astonishing (stock mapping delivers 2 extra HP or so), but the sound is. And if you need further proof, here's a Suzuki Hayabusa with a RLS Predator can, having freshly replaced a Brock Alien Head. Predator vs Alien, properly done the bike way.