[bexs335]

Im new to the bmw world!!! I have 2 porsches but love my bmw way more!!! I have a 2007 335i with the jb1, and afe stage 2, I want the best chip avail and i have no clue wur to look?? Please gimme some guidence on where to look and what to do next!!! I wanna spend about 5k in about 3 weeks!!! And I want the best bang for my buck! I know someone has done the homework already!! (i want only engine mods!) Heres the car im working on now!!!