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View Full Version : N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning


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  1. Code 2D61
  2. My brand new Used N55 "crate" motor finally arrived
  3. Codes after valve cover replacement
  4. N55 long cranking
  5. what's the current N55 WHP record?
  6. Will stock 219m fit 2013 e92 n55 335 without modifications?
  7. Broke timing chain rail guide
  8. N54 manual trans on n55 ?
  9. Long cranks on cold start. Low rail pressure. Ideas?
  10. Power steering issue!!!!
  11. Pure inlet vs vrsf inlet input !!
  12. VRSF 7HD FMIC Review/Results
  13. Loss of power - Vanos?
  14. Battery Light On
  15. I just bought a 335i from the dealer, about 30 mins later engine malfunction! :(
  16. 335i N55 Overheating HELP!!!!
  17. VRSF Catted Downpipe reviews?
  18. manual gearbox swap on a N55 Automatic / Which one?
  19. E92 N55 335xi Single Turbo upgrade?
  20. N55 Cranks / No Start-Up
  21. Finally updating JB4 after 5 years - backend flash?
  22. VRSF N55 Catless Downpipe Installed
  23. JB4 keeps going into safety mode, code: 2C3E
  24. I'm going to preventatively replace my 72K N55 rod bearings
  25. update to PPK for 2011 335xi e92
  26. Weird noise, asking for opinions?
  27. Can anyone help me out?
  28. Service Engine Soon - Codes 387F & 2BCO
  29. using JB4 Harness A/B on N55
  30. HPFP? Help me out
  31. Requesting Help Tracking Down Cylinder 1 Misfire on N55 335xi
  32. P0171 Will Not Go Away
  33. Need advice on Crank No start 2012 N55 335i
  34. help with n55 down-pipes
  35. XHp vs JB4
  36. Use Delphi coils - avoid Bosch coils
  37. bucketless lpfp without tune
  38. N55 oil hungry
  39. N55 E92 Top Mount Single Turbo
  40. Not Meeting Boost Target
  41. Pure Stage 2 tune
  42. I want flames!
  43. o2 sensor fault bugging me
  44. Upshift Burp/Pop - N55 w/DCT
  45. where to get catless dp's installed santacruz/bay area?
  46. The "that doesn't sound good" noise
  47. Vacuum on crankcase
  48. Oil Filter Housing Questions
  49. Valvetronic Designs Introduction, Valved 335i exhaust + exhuast flap controllers
  50. New Used Engine Prevention
  51. Steering Issue
  52. How to find out which chip my E92 has
  53. Clutch Recommendations
  54. Need Help Diagnosing Misfires
  55. Rusted turbo actuator
  56. Injen with PPK kit
  57. What should I gap my NGK spark plugs to?
  58. What is this hose?
  59. Delete
  60. N55 downpipe size/flexi
  61. What is this sound?
  62. '11 E90 N55 bearings @ 167k mi; metal shavings, no knock
  63. N55 Catless DP Fix DIY?
  64. Realistic power goals on 91 octane
  65. Issue Changing Gears - Is it Clutch?
  66. N55 Oil Leak - What is this?
  67. Fuel Pump!
  68. N55 squealing noise
  69. SIB Number for Priming Oil System
  70. N55 E50 from mhd
  71. Turbo inlet pipe... more sound?
  72. Oil filter housing gasket
  73. Gearbox Type
  74. Software update with PPK?
  75. Engine sounds like Diesel only at idle?
  76. E92 N55 XDi pump?
  77. Downsides of Jailbreaking MEVD1726 DME?
  78. Upgraded HPFP
  79. DCT Flash to Behave like M-DCT
  80. N54 what tune and power people are getting with FBO?
  81. bubbeling on boost leak test,head gasked? missfires, log and video inside
  82. N55 I downpipe on XI
  83. Deleted
  84. N55 Stalled after OFHG replacement, No crank no start
  85. P10D9 Code Thrown
  86. N55 MHD OBD2 Readiness Information
  87. Rough Idle
  88. E90 LCI blue tooth and aux not working after ISTA-P update
  89. N55 rough cold start idle and 002E0F code HELP
  90. Remove top speed limiter ?
  91. N55 xDrive Downpipe Install
  92. MHD stage2+ low boost?
  93. Code : 2C58 - 2C83
  94. Water pump on the way out?
  95. Throttle Lag/Rev Hang - Any fixes? (4 years later..)
  96. N55 Chirping Noise Under Boost
  97. My Stage 2 Learnings (1.5 years later)
  98. What’s that noise?
  99. Rough Idle
  100. N55 nearly (intermittently) stalling at lights after plugs/oil change
  101. Correct JB4 settings?
  102. Pulley/Belt noise?
  103. N54 axle back exhaust fit on N55?
  104. Precisionraceworks N55 coil kit.
  105. Catted DP that won't throw codes
  106. JB4+data cable + tablet?
  107. VRSF Catted dp
  108. N55 VANOS rattle loose bolts
  109. PS1 vs PS2 turbo?
  110. Super confused by my misfire / fueling issues, need help!
  111. Custom tuning revision time
  112. N55 mhd tuning stock exhaust
  113. Ignition timing corrections
  114. Shadow Fault Code Help
  115. Waste gate rattle??
  116. N55 Injen Intake for $304.00 Shipped
  117. Jb4 e-series harness B vs f-series harness
  118. Boost leak or Failing turbo??
  119. Bought new coils... but had these on new items.
  120. Coolant overflow tank
  121. Best ROI for turbo upgrade: Purge Stage 1 or Stage 2?
  122. New rear wheela tire size
  123. Are BMW plugs and coils really worth it?
  124. Whining sound during acceleration?
  125. Lowered spark plug gap and now misfiring
  126. Clunk from Front passenger side
  127. N55 Engine turn off bc of the power steering pump?
  128. N55 Sensors to replace for preventative maintenance?
  129. Gfb Dv+
  130. N55 with xdrive top mount turbo
  131. Wagner DP Doesn't Fit
  132. Burble question!
  133. Valvetronic 2DCF "No Movement .." diagnosing VVT motor vs DME
  134. Xi OEM downpipe in a RWD
  135. Wagner Tuning Quick Factory Tour + Intercooler Build Process: Concept To Completion
  136. Now that I'm FBO what cooling option should I really consider?
  137. does anyone know the wiring diagram of harness b.
  138. need help searching for misfire with no code
  139. 2011 335 e90 exhaust tip question
  140. Exhaust piping gauge
  141. 335i updated to new version MHD, is my car okay?
  142. Turbo upgrade
  143. N55 buring oil?
  144. BEF what should I expect?
  145. N55 bigger power, what to be worried about?
  146. Fuel Lines
  147. Take a look at these spark plugs
  148. Main Seals Noise
  149. Does anyone know what exhaust this is?
  150. MHD Burble Settings to Mimic PPK
  151. xDelete w/ MHD & xHP
  152. Unsuccessfully tried to trip trans limp mode, caused repeating stutter on highway
  153. Intermittent Rail Pressure Spike At Idle
  154. The Most Common N55 Fueling Issue
  155. Boost Leak?
  156. 6MT Clutch chatter?
  157. Negative Timing
  158. Port injection
  159. N55 Oil Catch Can
  160. N55 engine build labor costs
  161. 2be9 Mhd Stage 1+ But Not With Stage 1
  162. Misfire / Fueling Issues - 2F04 2BDE 2BF0 2EE0
  163. N55 Head N54 Bottom End... Possible?
  164. 2013 E92 N55 TTFS XDI HPFP review
  165. Target IAT Temp to Run Meth Injection
  166. New 335i owner, help?
  167. Wastegate rattle? Not pulling as hard
  168. Slide Rail Replacement?
  169. 7" or 5" FMIC for MHD Stage 1+?
  170. Engine Malfuction
  171. Rough idle when car has been running for a while
  172. Fbo + Pi Full E85 Custom Tune Questions
  173. IAT Codes
  174. 13537568607 Injector(s) From FCP Euro
  175. DV+ install
  176. Catless Downpipe installation, car dies shortly after.
  177. MHD vs JB4
  178. MHD help
  179. Meaning of various TQ Lim Codes?
  180. Valvetronic Motor
  181. Upgraded Coolin Fan
  182. N55 Dme Unlock
  183. E90 N55 w/PPK Stage 1 + MHD?
  184. Help: n55 fuelling issue. Hpfp failure?
  185. N55 Inlet
  186. Still making flutter sound on revs after GFB DV+ install.
  187. Upgrading turbo
  188. Review on DIY LPFP
  189. Code 29D0 and 29D2 after dme unlock
  190. Dinan S2 already installed, now what? (N55)
  191. Question of today
  192. BMS Stealth tank in E9x trunk (modded)?
  193. Upgraded LPFP
  194. Exhaust/Muffler Butterfly not operating
  195. Lifter Tick?
  196. Bank 1 Sensor 1 Code
  197. VRSF catless downpipe
  198. N55 Charge Pipe failure - MTC Install.
  199. Low Peak Boost
  200. Spark plug upgrade for e30 map MHD
  201. o2 Sensors
  202. No boost
  203. N55 JB4 w/ BEF Overboosting
  204. 2010 n55 dct faults after engine rebuild
  205. Front main seal from hell
  206. E85 and Start Up Roar
  207. N55 air filters
  208. n55 xdrive downpipes install
  209. VRSF 5" FMIC temps
  210. AFR on e85
  211. Issues with boost leak test
  212. Installing quad exhaust on an n55
  213. valvetronic wont relearn, and a rattle.
  214. Help: Brake light and traction control light while driving
  215. Boost Pressure Solenoid / Wastegate Actuator updated version
  216. Help: Code P10D9 Very hard start.
  217. Rebuilding turbo's
  218. 2011 335xi no crank no start
  219. Upgraded HPFP
  220. 28A0 - (Car Is Not tuned)
  221. Boost Solenoid High Pitch Noise
  222. Boost leak?
  223. Passing Emissions with a Custom Tune
  224. N55 FMIC for Daily Driver
  225. Boost leak question.
  226. Log Ok?
  227. Knocking sound putting window down
  228. N55 DP fix
  229. Protool: Diagnosis Ignition
  230. Spark plug gas e85
  231. Data log boost leak?
  232. Wastegate out of adjustment?
  233. PCV/Valve Cover replacement - N55
  234. Help dme codes
  235. Are The ProTool Knock Values Accurate?
  236. Misfires at Wide Open Throttle
  237. oil level stuck at 3/4
  238. Seat belt tensioner
  239. 2274 Air Mass
  240. Leaking valve cover?
  241. School Me On These Corrections
  242. ZF 8HP transmission problems
  243. What to do for more power ?
  244. Cold Engine Sound?
  245. Unlocked DME... jb4 with backend flash or MHD?
  246. '15 N55 Retro-swap into an '11 335i AWD begins
  247. MHD wont connect..
  248. Boost leak test. Cant test above 5psi.
  249. Clogged injectors? Techron cleaner
  250. XHP Launch Control