i went to rmpoutlet.com to order mine, i think its a flo-pro. its aluminized mandrel bent not stainless but i believe it has a 5 year warranty, it also came with 2 5" rolled tips free. it was about $420 to $450 bucks. and if you have a shortbed it somes with enough extra pipe to straight pipe it, but with duals thats a little hard bc you have to make the split for the duals.
sorry about the long post