I need to replace the long pipe that goes from the T-piece on the driver's side of the bulkhead to the front passenger side flexi/caliper as it is corroded. What do I need to remove to do this? It looks like I'm going to have to take the inner wings off to get the old pipe out and the new one in. I'd like to keep the old pipe in one piece so I can copy it to make up the new one.