They are available thru Big Dog as a preformance pipe for the new Pitbull. not sure who mkaes them thou. You might give Nelson at Wicked Bastard Cycles a shout. he is a member here. I like the pipes as well but didn't look like they would fit a Ridgeback. But anything can be made to work:2thumbs:
They are V&H reverse radius. Put them on my 08 Pit and sound great. Not sure that they make them for 06 because they are tight fitting on a 280 rear which they went to with the 08 model. If you have the standard 300 rear you might contact V&H prior to purchasing to find out but I doubt the ones I have would fit.