meth

Hey guys, I know I know I've been MIA over a year but I change hobbies and flip flop... Well I'm working back on my car again more. I want to plumb up my direct port set up and get her running with no leaks and then tuned... Does anyone have a BEF for direct port meth or a suggestion to get...

Hey guys. I figure I would post on here about my 2012 535xi. Feel free to ask any questions. I have the full build of over 200 pics on my Facebook. https://www.facebook.com/HiddenMotorsports/ Performance Custom intake VRSF Downpipe Custom 3" dual exhaust Pure Stage 2 Turbo DV+ Precision...

Since I've downloaded the latest firmeware my meth flow has been acting up. At first it was slow to reach 100% which it always hits, now today it was hitting at best 50%, i did three short pulls not even revving it out, around 4000-5000 rpm. Then the car seemed to shudder at light loads in 5th...