Do they come pre bent and everything? Just piece it together? The car currently has dual exhaust I'm not sure what size I wanna say 2 inch maybe 21/4. It has two new (15 years old but never ran) thrush mufflers. Not glasspacks actual thrush turbo mufflers not even sure if they still make them lol. I was gonna weld in a x pipe and work forward from the crossmember back it's all there.