I have been trying to decide between these two myself. I like the aerocharger turbo,real air filter and intercooler . I like the plumbing (keeping dual mufflers),larger injectors,new pistons and the reflash of mxc. If i can find a dyno within a reasonable driving distance i may just make my own. After pricing a new xds. With trade in I would be looking at 12-13 thousand plus financing, and still have to mod it. so a turbo kit, and stretching the rear diff on my 13 seems the way to go.