I am looking at the sports exhaust for a usa 2005 Roadster. I wonder if there are multiple manufactures or one source? Maybe Librands version is sold in multiple places? I can find examples on you tube or post on Talk Morgan describing the experience and the sound on every Morgan model but the 3.0L Morgan Roadster. Even Librands will not describe it; but they do detail the 3.7L version. Would other Roadster owners share their expereinces. Does anyone have a digital audio file of a you tube video so it can be heard. This isn't an easy to afford item and want to make a smart decision. Thanks Talk Morgan!