1. GhassanAutomotive

    PROMO Remanufactured N55 Engines For Sale

    Buy the remanufactured BMW N55 engine from Ghassan Automotive for $3,995 that includes a two-year, unlimited miles, parts, and labor warranty. Ghassan Automotive wants to provide a stress-free and convenient experience. If you need a BMW engine replacement or want to upgrade the one you already...
  2. AJL

    Weird fault code 5062

    Does anybody know what could be causing an intermittent DKG fault code of 5062? Show's up in ISTA as: 5062 - DKG: Fault, parking-lock hook I've thoroughly checked the shifter wiring harness and engine bay harness for problems, but haven't found any. It comes up randomly with no discernible...
  3. Carl Balzer

    F1X Beta testing the new VRSF Turbo Inlet and install

    *I'm going to preface this by letting you know that I was chose to test the first ever VRSF Turbo Inlet for the N55 F10. Since this inlet has not been officially released yet, I can not share the pictures of it. Once Tiago and VRSF does their official release, I will update with my pictures.*...
  4. S

    N55 swaps/interchangability

    I have a 2011 E90 335i that just spun a rod bearing. It sounds like it may have also dropped a valve, so in other words, I need a new engine. I haven't found any definitive answers for this question but how interchangeable are the N55s from different years and chassis, so I was hoping the...
  5. C

    CA Who is in nor cal?

    New to Bmw always see a few guys with modded 1 and 3 series in Sacramento.who else is around?
  6. X

    MFactory DCT flywheel owners GET IN HERE

    I've seen that a lot of people purchased these flywheels to hypothetically eliminate the phantom knock when going above 18psi on a PS2 (N55 specifically). However, I've yet to see a single review or post proclaiming that this flywheel does prevent the phantom misfires. Who can speak to this...
  7. Carl Balzer


    *I'm going to preface this by letting you know that I was chose to test the first ever VRSF HD Core intercooler for the N55 F10. Since this intercooler has not been officially released yet, I can not share the pictures of it. Once Tiago and VRSF does their official release, I will update with...
  8. matreyia

    n55 way more finicky than 54

    Does anyone find that the n55 335i is way more sensitive and finicky than the n54? I work on both engines and every time I work on an n55 no matter who's car it may be... once re-assemble is done, I run fault codes and 100% of the time I get some error related to the vanos actuator, boost...
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    Closed deck N55 with a Maximum PSI pinned hub
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    N55 cylinder head
  11. SoyElMaui

    FS N55 JB4 E Series Harness A

    Selling N55 JB4 Harness A. $200 shipped.
  12. RichMichael97

    Stay Away From RFP Tuning (aka Dean Fuhriman)

    I’m making this post to warn people about RFP Tuning (aka Dean Fuhriman), who has been “tuning” for the N5X community now for a few months. He has a history of screwing up people’s cars, and even bragging about it on Facebook. My first experience with him was Sept 16 when I inquired about his...
  13. R

    Timing corrections issue

    Hey guys, I have been getting bad timing corrections for months and can’t seem to find the problem. Car is N55 FBO, PS2, PI, Stage 2 lpfp, PR coils, E60 fuel, Auto with xhp s3. I’ve replaced injectors, upgraded to PR coils, and swapped plugs multiple times. Any help would be appreciated...
  14. Bug Killa

    Bug Killa

  15. Stance'n


  16. Bnks334

    Addressing N5x oiling and spun rod bearings (Accusump installed)

    I posted the gist of this in another thread but I am hoping that making a dedicated thread on this topic results in some CONSTRUCTIVE conversation regarding N5x oiling. Are there improvements that can be made other than just blaming oil? Or, are all the street racing bros right that Rotella is...
  17. Carl Balzer

    N55 535xi Build Thread Fbo+, PS2

    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...
  18. NoQuarter

    N55 leaks same as N54?

    My 2012 X5 has an oil pan gasket leak - totally expected based on my N54 experience. Should I expect valve cover gasket and oil filter gasket as well just like the N54? engine destroying accessory belt? Is this engine basically an N54 as far as all the BS problems go that I already expect...
  19. Twisted Tuning

    Increasing Oil Pressure on N55 preliminary testing

    Taking advantage of some of the N55 technological advances here by using the equipped electronic oil flow valve to increase oil pressure wherever we need it. Defined the table for this a long while ago to control the oil pressure. But just now getting around to actively doing testing. Testing...
  20. johnybravo

    DCT(dkg) errors after m3 differential swap

    Hello guys! In 2 words: We swapped to 335i (n55 dct 2.56 differential) differential from m3 with 3.15. And now have errors with ABS and DCT. Did anyone found the solution for ratios in m3 diff or in DCT(DKG) software? Ore maybe you know Where we could find custom diff ratios for E92 M3...