baffles?

I've recently changed my standard exhaust on my 2002 rsv Mille, since found out the baffles on the standard one can come out, I've read lots of posts on this but there are no pics on how to do this, maybe mine are done already because I can't see welds to take off to remove and I'm unsure if...

found this part number: AP8797159 £47.82 for Exhaust Reduction http://www.ultimateparts.net/shop/category.php?id=18755&n=Aprilia-RSV-1000-2003-Accessory-Performance-parts-II not sure if price is for pair or each? Anyone got any experience, will it reduce the sound level for 'quiet' trackdays...

Does anyone know where I could pick up a set of exhaust baffles for my Aprilia double pipe shotgun type mufflers? Custom or pre-made. It would be nice to be able to quiet the thing down when needed cuz that damned thing is LOUD!!!!.... which I like,,, ,most of the time.