There is a lot of talk and anticipation over the PSE, however I wonder is it really worth going for this option. If it just makes for a slightly louder sound then why bother! I think the standard tail pipes are better looking than the different diameters on the PSE. The fact that the electronics intervene and reduce the sound level at a certain speed limit also detracts from its appeal. If the PSE allows the engine to breath better and adds more horsepower then that would be a different story! may be it does???