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


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  1. Single Turbo Manifold Differences.
  2. MHD Exhaust Burble
  3. Stage 3 lpfp/PI Question???
  4. Variation between Boost and Boost Mean
  5. P30ff code at random?
  6. Anyone running the "on3 single turbo" kit on their n54??
  7. Car died mid corner sent me off the track.
  8. Any aftermarket coolant reservoir?
  9. Need Help For Downpipe Fix
  10. Oil on top portion of plugs.
  11. VRSF downpipes
  12. tuning help needed with jb4 and vrsf 3" catless dp's
  13. How much of a nosedive did your MPG take after a tune?
  14. Limp mode after e85 jb4 on map 5
  15. Low fuel psi with upgraded pump
  16. Another Varga Turbo Success Story
  17. Building from scratch - Machined Intake Manifold
  18. Virtual Dyno & MHD
  19. I think my Alternator's gone?
  20. JB4 335i only trapping 84mph in 1/8th
  21. Need help
  22. Outer tie rod stuck
  23. MHD BOOST
  24. What jb version
  25. fuel leak on sending unit fitting
  26. Overheating and limp mode?
  27. Walnut Blasted My Valves
  28. Turbo Install
  29. Sad day 335i down
  30. Bosch Front O2 Sensors
  31. Most power with only a LPFP upgrade? ST or TT?
  32. Shop can't get it right! Story inside
  33. Who's still on their original injectors?
  34. PSA: Bosch Front O2 Sensors for Cheap
  35. Tick, tick, tick, tick BOOM!
  36. Can't find my MHD logs on my Nexus
  37. MHD Question
  38. Transmission Low Oil Light?
  39. Experience with MMP Engineering
  40. Feels like cars choking itself
  41. Jerky ride at low revs, hesitation, fast jerkiness at high revs
  42. Multiple Code Help Needed
  43. Need advice on next Mod
  44. E90 rear ABS sensors change
  45. Mhd wedge flasher - NOOB EDITION
  46. Remove Flapper? Alternate blow-by fitting? N54
  47. making my own wastgate parts. engineer or turbo expert advice needed
  48. Dealer told me my car skipped timing. wtf?
  49. Loud air rushing noise after FMIC install (log included)
  50. What causes torque to drop off so far?
  51. AND now there's smoke...
  52. Are inlets worth it?
  53. JB4 Warm Up Feature Working Properly?
  54. What compressor wheel size are these?
  55. Feed the power in or Pedal to the floor?
  56. Oil Leaks
  57. Cnt Downpipes
  58. Looking for Silicone Inlets Installation DIY
  59. DP FIX help needed
  60. Once Again - 6AT Auto Transmission - Anyone with high power please respond.
  61. Smoking car down pipes off, turbo pics - what's your take?
  62. Post-shift fuel trim flatline... da helllll
  63. Custom exhaust too loud! SOS
  64. JB4 to MHD questions...
  65. Tension on wastegate actuator arm
  66. Converting custom Cobb map to MHD via Tuner Pro - couple questions...
  67. Issues with 4BAR TMAP - Engine Malfunction
  68. Need help! Still misfiring :(
  69. FuEl It TBI Question
  70. Oil residue on front turbo?
  71. High Boost Needs/Suggestions for GC Install
  72. High boost on OEM cats
  73. Hexon RR600 with time slip and log
  74. E30 at the pump?
  75. Odd of toasted n54?
  76. Whats this freaking sound!?!*****fixed!
  77. 2C7F code (log attached)
  78. Map 7 targets/boost curve
  79. Using MHD Logging and Datazap.me to diagnose
  80. Billet front diff housing with stronger gears
  81. Sodium in oil
  82. TA Technix Downpipes
  83. Install 335XI OEM DP on 335i E90
  84. pulled my injectors, not a single decoupling element
  85. Has anybody coded injectors with schwaben scan tool?
  86. Tranny whine ??
  87. DP fix & emission? Will I pass?
  88. 335is DCT transmission errors
  89. Inline thermostat options
  90. Fs: Bmw Pe Exhaust
  91. Best Air Scoops?
  92. Mfactory LSD recall
  93. Front and rear axle spline pattern
  94. 2E68 knock sensor 1 and low boost 3100 codes
  95. VTT GC Testing on 93 Octane; 568 whp
  96. Aftermarket intake manifolds
  97. 335is exhaust crackle help?
  98. How to tell if your water pump is broken?
  99. BMW Error code 2D59
  100. New turbos on the block?
  101. DIY 3 inch lower charge pipe
  102. 30FC and CDA9 after Car Repaired????
  103. Why is it difficult to impossible for dual ball bearing stock frame turbo replacement
  104. Anyone get wastegate rattle fixed under 3rd party warranty?
  105. Nizpro 6Hp21 6AT Transmission upgrade news
  106. MHD stage 2 stats and requirements
  107. Air Filter Help!
  108. How to flash "only" MHD burble or any other
  109. Lower octane = worse mpg ?
  110. MHD flash options - work with custom maps?
  111. Oem clutch kit.
  112. Intercooler Question
  113. N20 TMAP clarification
  114. Waste gate rattle - warranty info please
  115. Coolant temps?
  116. Another misfire thread -- Persistent 29D2 Cylinder 6 code at all times
  117. Valve stem seals leaking? See pics
  118. Help with compatible tablet for mhd flash!
  119. Fired up ECU with weird mosfet name
  120. True Full 3in. DownPipes?
  121. turbo leaking oil and oil pan leaking
  122. Ambient Thermal Management- MIA??
  123. transmision swap 6AT to 6MT
  124. Help - plastic strip in radiator fan
  125. Question about passing emissions with DP Fix
  126. Have boost no power. Vacuum leak?
  127. Weekend Exercise: 6466 335xi Pulls
  128. Elusive 30FF Issues
  129. 2c31/2c32/2c7f codes
  130. Gold Heat Wrap - Anyone use this w/ results?
  131. HPFP and wastegate extended warranty / TSB - when does it start and end?
  132. Codes and rough idle
  133. What 6AT automatic transmission mounts do you all recommend?
  134. Possibly stupid IAT question
  135. Flywheel preservation...
  136. 90K miles - Preventitive Maintenance
  137. N54 turbos latest revision (how do you tell?)
  138. MHD Flash - Need to remove Procede
  139. Noobish question about FBO
  140. Smog Check in California with Cobb Stage 1 Tuned
  141. Please help me with a part number confusion?
  142. Tuner Pro .adx and xdf files
  143. New water pump issues
  144. LSD installation. Help
  145. No Power - Turbo Pipe split
  146. Need Boost leak help.
  147. Ltft and Stft different on each bank
  148. Strange clicking on tickover. N54
  149. Some Help with Codes Please!
  150. Random loud exhaust periods?
  151. fuel injector or spark plug/coil or something else?
  152. ER FMIC and CP installation Question
  153. Any relation between oil and coolant temps?
  154. I'm I out of recall/replacement for HPFP?
  155. ltft low only at idle - leaky injector?
  156. MHD tune - auto transmission starts in d2
  157. Boost solenoid problem...?
  158. Bmw 2de5 code
  159. Best FMIC on the market?
  160. CX Racing Intercooler
  161. Keep getting long, long cranks and only 2AAF codes keep returning
  162. Boost Question
  163. what are your thoughts on theses turbos
  164. Throwing codes! Need help
  165. HPFP part num 170 vs 446
  166. LTFT - Fuel Trim HELP diagnostic MHD Log
  167. Whining noise
  168. BMS DCI now 50-state legal!
  169. Need help!! 07 bmw 335i
  170. N54 throwing cat converting errors 29F4 / 29F5 Same Time!
  171. Intercooler C Clip Same as Throttle Body Clip?
  172. Help Identify this JB4
  173. Is there a simple common mod to make diff locked?
  174. The Junkyard N54 Engine: Rebuild and Refresh
  175. Car turned off while in park? Help
  176. What software do you guys use to do logging with datazap?
  177. How much whp and/or torque does a DCT of a 335is trans hold?
  178. Upgrading stock turbos?
  179. Fuel system cleaners
  180. Diagnosing long crank- dataloggin (FIXED! Fuel Pressure Regulator!)
  181. Anyone have LPFP data log prior to starting car?
  182. CEL P2098 code catless + dpfix install readiness
  183. My MHD Flash experience
  184. Metallic Lifter Tick - Gone ?
  185. ZF Automatic transmission leak fix?
  186. Found wrecked 335is at junk yard - what to salvage?
  187. Help with DP fix!!
  188. Car has been stalling, now a new idle issue, any clues..??
  189. Best Price - n54 Charge Pipe w. Tial Bov
  190. Should I ditch PROcede for JB4
  191. New turbos installed, still some rattle?
  192. CX racing Chargepipe
  193. How to make an LCI e90 handle better than ///m3
  194. 335is exhaust sounds amazing for first 30 seconds only
  195. JB4 Error code
  196. BMS Downpipes?
  197. Dp fix- help identify 19 and 20 wire...
  198. Get a load of this crap!
  199. Rod knock?
  200. Wastegates stuck open for first 15min of driving (update: solved)
  201. Giving Back - Various Parts Past 3 Weekends
  202. What type of oil do you use?
  203. another BS, engine rattling in idle
  204. timing corrections while cruising
  205. About to replace turbos. Manifold bolts/studs have me worried
  206. NEED N54 pro-tuner (Cobb) in Minnesota
  207. Downpipe install help!
  208. MHD v7.0 e25 beta
  209. Today is a very sad day engine problem/ limp mode
  210. Am I good to run e85?
  211. Is this a small leak in the oil return line?
  212. Unboxing of the on3 Performance turbo kit
  213. VTT GC Giveaway! Enter here!
  214. MMP Inlets and Outlets Review and Dyno Results
  215. Cobb intercooler plumbing popping off.
  216. Injector coding
  217. Boost leak
  218. MHD Question
  219. Downpipes Question
  220. Looking at silicone in and outlets?
  221. Valve cover/downpipe swap now codes
  222. Steering Wheel Shake
  223. 07 Bmw 335i sounds like a friggen diesel
  224. BMW switched engine oils again
  225. Stupid Question: For people with Downpipes
  226. N54 (2207 335i) Access to front turbo inlet connection
  227. Codes 2ABC and 3100 MHD + 4Bar
  228. Hexon turbos and warranty
  229. Fuel Injector Blow-by
  230. Dinosaur procede and upgraded turbo & tmap sensor question
  231. Stuck trying to remove front outlet vband
  232. help plz.
  233. Introducing the VTT GC lite turbochargers!
  234. Single Turbo 335xi vids (Doc Race w/ Pure 6266)
  235. Where are all the kill stories and build posts.
  236. My Jpworkz 6466 GEN2 install
  237. Replacing Stock Oil Cooler - Which should i get?
  238. 700+ lb-ft torque 335is clutch
  239. Wastegate rattle how prevalent?
  240. Shift S3ctor Indy AirstripAttack 2wd Unlimited Roll Race Champion
  241. ******** COBB Protuning and MHD Custom Tuning
  242. 09 335i New Upper Radiator Hose Blew Off
  243. Stack jb4 with Cobb ap
  244. No Boost: 3100 code, 30CF, 30D0
  245. Rear O2 Sensor Wires
  246. Anyone in the Nashville, TN area that knows a reputable shop?
  247. Any Advice?
  248. JB4 VS MHD
  249. water temperature 250F
  250. Stutter only in upper acceleration. Drives normal otherwise.