I have ordered RARE long branch manifolds for that very reason. I plan to have a local muffler shop custom bend the pipes over the flex plate. I am hoping to get 2.5" pipes installed. It will be tight, but they say it can be done. All the PYPES/RARE kits require spacers on the convertible flex plate. I did not want to do that. The RARE manifolds should be here in a week or so. I will let everyone know if I was able to get 2.5" pipes installed.