These are the one piece mandrel bent off road pipes. Also pictured is the optional ORP/Flex combo with the v-band connection.
There has not been one single failure with this design, and now being one piece, they are the absolute best on the market! 2.5″ 304 stainless steel construction and completely TIG welded. The o2 bungs are relocated to have optimal clearance on lowered cars and to prevent breaking sensors. These are custom made to order at this time. Lead time varies depending on production.