not really most 335i on e90post are running jb4+fmic+dp+dci+exhaust. turbo upgrade for the 335i is only another 1500.
personally im not going to mod the heck out of my car its a luxury car that just so happens to be fast. faster than most v8 that i have ran.
if your gto is so wickedly fast post vids of you racing decent cars then ill believe you, until then you can be an just another 17 yr fanboy. that still takes the bus to school.