If you do the relocation kit, be sure to get the one that feeds the lines from the side, not the bottom. The bottom style puts the lines right on top of the longbranch manifold. I installed the Trans-Dapt kit with the TRD-1420 filter adapter, and still had to cut the spin on threaded pipe on the housing because the adapter did not seat all the way. I also haven't started the engine yet, but it looks like a good seal.