Hey guy I was wondering if you've had any experience with the Stage 3 turbo upgrade kit from SpeedTech (
http://www.speedtech.com/bmw-n55/)? I like that they use a BorgWarner EFR turbo in their kit instead of a journal bearing turbo like in the Pure Stage 2 kit. I'd like to combine the kit from ST and BM3 for the tune. I have no other performance mods except for a muffler delete. I'm targeting 500 whp.
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2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI).
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