Quote (Touhou @ Mar 16 2016 11:12am)
I highly doubt that with a stock exhaust.
Also, I hope you don't plan on keeping your warranty after that tune, BMW has a system to detect your fuel consumption so you'll get voided in a heartbeat.
My warranty is over
I have a 3.5" downpipe and bmw performance exhaust.
These cars make 450 with charge pipe, intercooler, dp, and tune.
n54 and n55 is known for being bottlenecked by the stock setup. My old n55 made 430 with the same upgrades, and 2 baby turbos