This is a Corsa quick and quiet marine exhaust system off of a 2005 Baja.  If you're looking for awesome through transom sound while not being too obnoxious this is the system you need.  The "muffled" tips produce a awesome deep note with plenty of sound while not being too loud.  This system also allows the exhaust to exit through the boats drive via a Y pipe that connects to the diverters and the drive.  Includes flappers that clamp to the transom tips. I also have a Y pipe for a Mercury bravo drive if needed.  Feel free to ask any questions.