N55 w/ Dinan tune for $800 you get 355 hp & 400 tq. Then just upgrade the charge pipe and intercooler.
Unless you really think an extra +12% bump in hp (355 vs 400) is really worth it.. personally I'm not sure I see the need for spending all that much more on FBO over the Dinan tune but to each his own.
__________________
2011 135i w/ DCT | ZSP Sport Pkg | PPK | Ohlins R
|