If you have the supporting modes to do it, map 5 on E85 will blow your mind, but make damn sure your ready for wheelspin cause there’s minimal lag and you’ll be near 500 engine HP give or take all at once.It has less lag than both supercharged v8’s I owned the oem turbos are tiny but are way detuned from factory able to happily handle 100-150% extra psi just make sure you have DPs and a 5” inter cooler at minimum or 7” I have gone out and done many back to back pulls and the outlet temp from intercooler still stay 5-10 degrees above ambient I have the whole cooler exposed and never had heat soak but the stock one does and temps are 20-30 degrees higher it’s night and day. So for $1000 you can make your 335i go from 225kw up to around 310-330kw which is incredible
I have started tuning n54s not long after this video and have managed to get very good results on my personal car, E50 and 25 psi on stock turbos. www.whpaddict.com