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View Full Version : N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i


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  1. FBO N54 and MHD. HELP
  2. Flutter With HKS BOV @ 21psi
  3. Upgrade fuel pump advise.
  4. Last Resort. Help please!
  5. Coil Upgrade? FBO N54 335xi
  6. Alternator generating correct voltage, battery not recharging?
  7. VRSF Poor Quallity Charge Pipe?
  8. '08 335i Overheating / Thermostat Leak
  9. Possible to run MHD flash only with JB4 installed?
  10. Gearbox weird noise (manual N54)
  11. Help this shit is so confusing
  12. Stage 2 turbo upgrade help!!!!!!
  13. Trying to narrow down a rattle under throttle.
  14. Dumb question, i'm sure
  15. If anyone is interested follow the build
  16. Bog right after gear shift 6spd auto.
  17. 2010 e92 335i n54
  18. No power delivery n54
  19. What maintenance should I prioritize?
  20. 335Cab 2006 E93 N54 // Aluminum bolts in an aluminum motor to be or not to be!
  21. Methanol in the tank?
  22. can I swap an N55 for an N54 in a 2011 335i?
  23. Help with a misfire
  24. Carista scanner, P0171
  25. The Ultimate BMW N54 Charge Pipe & BOV Guide (DIY Video)
  26. Straight pipe golf tee mod
  27. Dirt in sparkplug hole
  28. Pure Stage 2 vs. Small single turbo?
  29. Finally did some logs!! Input would be great!!
  30. Jb4 Install Power Wire
  31. Fuel trim question
  32. Full throttle throws codes. Please Help!!!
  33. Downpipes really worth $700 install price?
  34. 2C31 DME Code - MHD Stage 2 + Emissions
  35. Car Slips When Accelerating
  36. Software for Awron E9x DGA needed
  37. E92 DS works great, M mode will not work.
  38. O2 question
  39. (HELP) installed jb4, car wont start (HELP)
  40. Single Turbo Install, Aiming The Dump Pipes
  41. BMS Meth not getting flow, a little help please.
  42. Anyone try this boost leak testing kit?
  43. What does a DCI, and catless down pipes get you?
  44. Help ASAP
  45. N54 smoke issue
  46. AFR stuck
  47. Misfiring at idle again! Any ideas? [Logs Inside]
  48. Good non OE valve covers and bolt PN question
  49. Do I have the DCT transmission or the normal auto?
  50. 335i 6MT Misfiring over 3k RPM
  51. MHD transmission option?
  52. Changing fluid in 6HP21 with 90K miles on it….yay or nay?
  53. 2012 335is 60k - Rod Bearing noise - needs engine
  54. Valve cover warning labels discountinued?
  55. Too old to tune?
  56. Torquing to factory specs on a 100000 mile car
  57. JP workz 2019 orders
  58. "new to me" 335i....first drive. Lots of codes!! Help!
  59. Injector options?
  60. Questions about MHD Stage 1
  61. E92/E93 335i with OEM M3 exhaust
  62. 2c32 & 2c62, stft bnk2 flat, input?
  63. Bad boost solenoids?? 30FF low boost code.
  64. Rough Idle, Cold Start, 29F2 Only Code
  65. Post cat O2 sensors, whats the difference?
  66. N54
  67. VRSF Exhaust Sound
  68. MHD showing me 2 different VINs for 1 car??
  69. xHP transmission flash stage 2 issues
  70. N54 vs S65 DP Fix
  71. wtb secondary cat for 2008 335
  72. Which MHD Tune should I run?
  73. NGK 5992 Discontinued?
  74. Motiv Flex Fuel advice?
  75. MHD tune disable fuel pump?
  76. Transmission Oil Temp?
  77. Leaky injector....any options besides replacement?
  78. Need Help With Stuttering and 1/2 Engine Light
  79. MHD tune N54 wastegate rattle?
  80. CSF Race N54 FMIC
  81. N55 vs N54 Map Sensors
  82. Cheap Chinese intercooler from amazon
  83. BOV Vacuum Adapter tubing advice
  84. Gearbox n52 on n54
  85. Custom tuner recommendations
  86. High fuel consumption and less power.
  87. Help please - Fuel-It lpfp malfunction
  88. Need help before doing it
  89. Recommendation for turbo AR?
  90. 02 codes after DP install?
  91. FCP Euro selling reman index 12 injectors!!
  92. Is repairing turbos a good idea? If so what to buy
  93. Turbo Lag....what's normal on an N54?
  94. Dual wastegates
  95. ARM Motorsports Catless Downpipes...Good Stuff!!
  96. intermittently failing water pump?
  97. Clutch failure out of nowhere
  98. Turbo core buyer
  99. jb4 2 step/nls relay
  100. DIY Stage 3/4 Fuel pump question
  101. Slighty rough startup when cold...no codes. Normal?
  102. N54 335i Cylinder 3 Misfire Diagnosis
  103. Diagnosing spark plug
  104. Downpipe removal - Can you keep O2 sensors in
  105. MHD officially announced that Wifi adapters are complete and shipping to retailers!!!
  106. 335i not shifting/loses power
  107. Cheap seized engine?
  108. Number for the covergasket on the oil thermostat
  109. I have "spun" rod bearing :(
  110. Turbo replacement quote - Revolution Automotive
  111. Help! Boost inconsistentcy
  112. jb4 2 step works but nls doesn't
  113. Oil smell while driving.
  114. RB GF 93 and e85 Dyno results! 681whp
  115. HELP! Issue with MHD OTC tune / 2nd track day tomorrow
  116. TR Turbos
  117. Optimal General Tuning Parameters
  118. Car's Running Odd
  119. Log Review - Replaced o2's
  120. More Misfire Issues!! :)
  121. 2C31 - lambda code help
  122. N54 Engine Mount Question
  123. Need help 335i Dct conversion
  124. 335i manual transmission noise
  125. Possible Head gasket leak??
  126. Mfactory clutch already slipping?
  127. jb4 no lift shift
  128. Is JB4 2 step only available 2 step?
  129. Forge diverter valve what spring should I use
  130. 335i N54 Idle drop after light thorttle blip
  131. 29E1 2A13 Codes
  132. No Boost??
  133. Rear O2 sensor replacement with c-PE DPs
  134. N54 jb4 to trade for N55 jb4
  135. VRSF downpipes - Bolt head size??
  136. Best solution for FMIC screw
  137. Single turbo.
  138. fueling for 750whp?
  139. Oil feed and drain lines
  140. PCV & Catch Can
  141. Exhaust leaking after downpipes what to look for?
  142. Do my turbo seals look good?
  143. Frustrated with meth
  144. Weird Start-up on Cold Start
  145. Steel SMFW/Spec Stage 2+ clutch noise on light throttle
  146. Fuel Problems
  147. BOV HELP
  148. FBO E92 335i money shift clutch damage
  149. Blown turbos
  150. Electric turbos ?
  151. N54 rear inlet cracked, also WTB silicone inlets for N54
  152. Engine wont start after an engine rebuild? HELP!
  153. need help fuel pump and coolant codes need help
  154. MHD failed to write about 55 times for three days
  155. Reset Adaptations
  156. Datalog read
  157. Oil leak/ part identified
  158. Turner inlet relocation kit
  159. Misfire 4,5,6
  160. Help with clutch options on n54 FBO
  161. 29E0 & 29E1
  162. Oil Cooler needed for a Daily Driver?
  163. Cant gas car past 1/2 tank
  164. Lubed injectors
  165. Question about MHD Burble Tune
  166. 30FF, can't adjust rear wastegate rod
  167. Best ATF for ZF 6AT Transmission in 335i??
  168. Any performance advantage to removing the secondary cats?
  169. MHD Wifi OBDII Adapters
  170. Can I repace just one injector??
  171. Cheap Downpipe? (Blackhorse Racing)
  172. Map 5 issues
  173. Aftermarket twins question
  174. MHD WiFi OBD adapter works great. Confirmed to work with mhd, xhp and xdelete
  175. N54 VRSF
  176. Coolant Leak!
  177. XHP stage 3/ transmission slip
  178. Eldor+Bosch Coil Mix==Bad?
  179. Anyone running latest (2019) VRSF FMICs?
  180. Fcp euro remanufactured injectors
  181. Where is this oil leak coming from?
  182. Dynamic Autowerx Turbochargers.
  183. custom cobb tune¿
  184. Puzzled. Misfires after Protool 'DME reset adaptations'
  185. Best OEM Inlet Manufacturer
  186. INPA and MAP testing
  187. help Reset adaptations
  188. Car dies intermittently
  189. Can a leaking PVC Hose cause the rear main seal to leak?
  190. Advice on next mods to reach 500hp?
  191. Fuel injector issue or is it?
  192. MHD 1+
  193. Not hitting peak boost after inlet and DP install
  194. Help with codes
  195. Orange Carbon Built Up?
  196. Serious STFT and AFR issues
  197. 2c9c after going catless
  198. Is my new valve cover already cracked?
  199. Anyone running the Helix HPFP Overdrive
  200. Random 2E69 - Knock-Sensor Signal 2 code?
  201. Spark plug / coil deep dive [1 loose, 3 oiled]
  202. 5" HD or 7.5" HD Competition Intercooler for stock turbos?
  203. FBO+ Maintenance Question
  204. TCU flash suggestions
  205. oil filter stand gasket life span
  206. Fake Index 12 Injectors - Scam
  207. N54/N55 Bedplate What Sealant??
  208. 2 inch turbo inlet housing
  209. AmazonBasics Oil in n54?
  210. Torque losses via drivetrain
  211. Strange oil leak
  212. New Throttle pulsing under acceleration
  213. BOV sound changed
  214. First E85 Experience, wow!
  215. Rattle Inside of GS6-53BZ Transmission
  216. Where does this go?
  217. My new Pure 600 Turbos finally came in. What are these marks?
  218. What whp range for PURE 600, FBO +INLETS, E40?
  219. 2FCA and 2FDA codes, hesitation
  220. Pure600 turbo kit, what else?
  221. Looking for a tuner in Los Angeles area
  222. Was hitting about 7.2 psi stock now at 6psi
  223. Best practices & equipment for MHD flashing?
  224. Misfire after changing plug.
  225. P0328 p1328 p2e68 p2e69 non stop
  226. N54 turbo options for track course use.
  227. Incorrect boost readings
  228. is it blow by? burning oil
  229. CSF 7046 (AT version) Radiator Install question
  230. Charge pipe/diverter leak
  231. N54 valve cover changed...leaks worse now...
  232. Reliability 2009 335i
  233. 2AAF and 3OFF code N54
  234. No heat
  235. New Guibo Has No Arrow, Which Way To Mount?
  236. Aftermarket N54 turbo inlets……looking for info.
  237. MHD V8.1 Maps
  238. DP fix
  239. Boost leak vrsf charge pipe tial bov
  240. MHD Stage 2 vs Stage 2+ ?
  241. MSD81 bricked after MHD 1.9 Update
  242. jb4 Help
  243. MHD "cold start noise reduction"....do it!!
  244. Built Motor + Speedtech Thread
  245. Turbo howl at lower rpms
  246. Wheel spin in 2nd, MHD maps & causes
  247. N54 Rod Bearings - Preventative Maintenance?
  248. Stripped belt tensioner bolt hole
  249. Upgrading Turbos in Winter, Can’t tune...
  250. Half engine light/limp mode after throttle adaption reset