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


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  1. Smoke from engine bay and exhaust after doing downpipes
  2. WTB: JB4 (either gen)
  3. JB4 for sell $350 + shipping cost
  4. Stolen Married Accesport
  5. E85 and codes you may have run into.
  6. Down pipe Being installed
  7. Loss of power
  8. golf tee mod help
  9. Firmware on JB4
  10. jb4 map 2 with only DCI
  11. Do the Michelin Pilot Super Sports hook up better than the OEM Runflats?
  12. Dealer service issue
  13. need come help with a code
  14. Downpipes question
  15. AFR Imbalance (Bank 1/2) - Bad Injector? Logs Attached
  16. 100% e85 cold starts
  17. Cold start long crank - ECU tune issue?
  18. No aftermarket exhaust available for E93????
  19. Merry Christmas Everybody!!
  20. PPK water cooler as additional oil cooler?
  21. Exhaust question ! RPi GTM Race Exhaust
  22. LPFP Tech info
  23. Ok to let dealer read key with Cobb installed?
  24. downpipes dilemma
  25. How are N54 engines in Brazil coping with 20% ethanol?
  26. JB4 at Altitude
  27. LSD Install in San Fernando Valley, CA
  28. Vargas Turbo Stage 2 / 3 update
  29. ETS 5 vs VRSF: FMIC
  30. Need Torque Specs for ER Oil Cooler Kit
  31. Will a RPI GTM Race Exhaust fit a 335i
  32. Air intake , what to do....
  33. Where can I buy 1 floor mat?
  34. when I use procede,I get 13mpg.
  35. '07 E90 clutch issue...did search...nada
  36. When I runing INPA MSD80,I get more codes.help
  37. $400 for DP install on XI
  38. Starting to hate my car
  39. Oil Temp Drops / Fan Overworking / SES Light
  40. Awesome mirror stickers my wife got me for X-Mas
  41. Quick question JB4 and OBD port related.
  42. jb4 question
  43. Help trouble shoot misfire
  44. Help! Car is buzzing loudly during Cobb AP install!
  45. Oil consumption... Reason for concern?
  46. M3 Rear Subframe bushing questions
  47. new DME= quite exhaust
  48. Metal Clashing sound with AR DP on Cold Start
  49. Help,my car lost DS mode.
  50. Shifting to 2nd My solution
  51. JB4 and 335i Help
  52. Intermittent Oil burning smell/Smoke with new turbos
  53. What seals/gaskets did you replace with wavetrac install?
  54. how can i tell if i bout a jb4 not jb3
  55. Broken Radiator Drain Plug
  56. BMW Performance exhaust
  57. Chipping a lease
  58. Cobb Stage 1+FMIC on ACN 91-octane?
  59. ar catch can help
  60. Jb4 rattle fix
  61. Car wont crank, accessories work, insrument cluster doesnt turn on except air bag
  62. Help! DME Power Wire Connector Snapped!
  63. What Cobb Stage 1 aggressive map?
  64. Transmission Problem?
  65. 335i no DS mode diy
  66. Cobb times
  67. bov wont release pressure at high rpms??
  68. No boost and no codes?
  69. AAA Recommends against using E15
  70. Downpipe Install Advice
  71. 335is ? SSK ?
  72. Exact difference btw JB3 and J 4??
  73. Help with 29CC code
  74. Injectors on the way out? is it safe to get tuned still?
  75. How many have boost gauge?
  76. JB4 Steering Controls Not Coming Up
  77. Is there a way to fully turn off traction control
  78. oil leak valve cover gasket?
  79. Cobb Pro Tune vs PTF E-tune
  80. Passenger motor mount change
  81. In the Market For An Intercooler.....
  82. JB4 + Cobb Has anyone tried it?
  83. o2 problem
  84. HELP WITH ER Charge pipe/Synapse BOV
  85. Bank 2 running too lean: p0174. Only mod is catback exhaust
  86. Heater Fan Problem
  87. Cobb loss of power at high RPM's
  88. Need Help! Downpipe-midpipe studs broke; misfires; hiccups/stutting...Suggestions?
  89. code:29F4 29F5 clear
  90. White Smoke From Exhaust = Bad Turbo Seal?
  91. To those that have installed the Injen intake...
  92. Radiator fan - say it ain't so
  93. jb4 iso
  94. Which way to install clutch release bearing?
  95. Stroke the N54 motor?
  96. 335i noise when steering right (VIDEO INSIDE)
  97. Just Bought Cobb - Great Service from XTR Performance!
  98. Need Help... Vac Tank and Hose
  99. backfireing and Spitting Flames! No fuel? Limp mode.
  100. Best intake with most gains for 335is
  101. N54 Head flanges and oil feed adaptors
  102. Stutter after BMS dci install
  103. Red Coolant Light+Now power=?. currently stranded :(
  104. I need input on people using JB4 and a COBB
  105. Wastegate rattle issue... any ideas?
  106. Anyone wondering what inside a stock muffler looks like? (pics inside)
  107. oil filter housing gasket????
  108. Aftermarket FMIC & Gold Warranty?
  109. differential Lockdown came in!
  110. intercooler question
  111. Redline or Royal Purple?
  112. 335is exhaust - enhancement questions.
  113. Custom tuners with Cobb
  114. how to tell if PROcede Rev 2.5 is vin locked?
  115. BMW said it is a Timing Issue?
  116. Most sophisticated exhaust?
  117. WARNING: Replacing turbos under warranty.
  118. Blown turbo seal?
  119. A question regarding tuned cars running at altitude.
  120. What to do after first installing JB4?
  121. Advice on long cranks post warranty
  122. Why is this intercooler so much cheaper?
  123. Upgrade charge pipe?
  124. Trunk Meth Mounting Question
  125. Just installed Cobb AP - only hitting 6 psi with FBO - 2 codes
  126. 380wph evo vs my car
  127. Cobb won't do the 0-60 or the 1/4
  128. JB4 install
  129. AWD Turbo installment contemplation! Need help
  130. AR downpipes fitment issues?
  131. N54 /Borg Warner s375 Fitment ?
  132. Spark Plug Swap to NGK 5992
  133. Upgrade internals in stock turbos?
  134. dct with jb4
  135. review on downpipes
  136. Downpipes & "noise"
  137. My road to where i am now.
  138. 02 sensors - 17098
  139. FBO/93 Octane Dyno Video/Graphs/Logs. Advice Welcome!
  140. Eisenmann Race with and without Catless DP's
  141. Perspective 335i Owner - Burger Tuning Build
  142. Los Angeles performance shops?
  143. Track Results - Unfinished Cobb PTF E45 Map
  144. e85 vs meth
  145. Dealer service caused misfire?
  146. 335xi Turbo Upgrades
  147. Multiple Cylinder Misfire
  148. Friend got Turbo's replaced under recall but very questionable work....
  149. New exhaust tips and new find!
  150. e93 335i vs Supra :)
  151. If I want install a M3 Selector...
  152. Meth trunk tank question
  153. Procede Vinlock
  154. tran fluid cooler
  155. Quick Stage 2 Update
  156. Heat Soak....what are the signs/symptoms?
  157. Error Codes
  158. BMS DP FIX: Leave it on...?
  159. Front Facing T4 TS Project
  160. Downpipe fitment issue (v-clamp won't close)
  161. Code 2e81& 2e82
  162. Do we really need to use BMS RS232/USB cable?
  163. GREAT misfiring!!!Help anyone....
  164. Power reduction mode
  165. Need some Procede V5 Help for 335is DCT
  166. 335IS muffler on 335xi?
  167. Help! Excessive Tapping Noise and codes!
  168. Dct transmission replacement
  169. Weird noise when steering after trunk meth install
  170. JB4 psi variations...
  171. AA exhaust tips or Quad?
  172. Pulling codes and logging data
  173. HELP: tune question
  174. Transmission Problem Help
  175. paint shop recommendation in US near Vancouver border
  176. 335i Automatic Transmission fluid change post your experience
  177. RPM Increase while shifting gears at higher speeds
  178. do you guys have n54 problems?
  179. Surging with tune in 2nd gear but not when on map 0
  180. Cobb AP not listing maps
  181. VRSF 3" downpipes review
  182. Gutted stock DPs
  183. Transmission gone, vid inside. Ideas?
  184. Flanges and DIY turbo fabrication parts update
  185. Any actual dyno proof of intakes for the N54?
  186. Replacing Stock Mufflers with Magnaflow Mufflers. Big Change?
  187. BMW DP fix back to Stock
  188. Modded OEM Exhaust
  189. Is it possible for N54 to sound like this??
  190. Running 100 octane on a road trip ?
  191. Quick Question
  192. E90 Catless DP + Exhaust????
  193. VSRF vs AP downpipes
  194. P0171, P29E0 with AR Catted DP
  195. Help Reading Jb4 On Dash
  196. BOV
  197. Turbo Rebuild?
  198. Engine damage due to separated charge pipe?
  199. New gauge in town.... anyone tried it ?
  200. Wastegate Rattle on ACCELERATION
  201. Strange error code after injector replacement.
  202. Correcting Boost overshoots in ATR
  203. Procede feature request and 2-step question
  204. Transmission help requested.
  205. any jb4 expert in miami area??
  206. AA Exhaust with Catless DPs?
  207. Anyone in calgary have some extra meth line?
  208. N54 making a weird noise! Knock?
  209. Stock 335 mufflers FS
  210. Stock 335 muffler FS
  211. Has this happened to anyone
  212. HPFP DIY completed
  213. JB4 Default Settings
  214. Track prep questions from brand new '13 335is owner and HPDE enthusiast
  215. BMS Fuel upgrade test results!
  216. Pinion seal leaking, dealer recommends not to replace
  217. Bringing Vishnu to the East Coast (Experience Documented)
  218. Word to the wise on E85
  219. How long did you wait to change your VCG?
  220. JB4 18.7psi @3,500rpm log w/ E85+93octane
  221. Oil Catch Can
  222. No vacuum at oil cap
  223. Steptronic ratios and 1st gear use vs DCTs?
  224. Delete
  225. n54 Bird Chirp sound (New Turbos)
  226. $175 for CDV Install
  227. weird ticking sound is it waste gate?
  228. Why do people recommend map 1 over 2 on a JB4
  229. questions about procede rev 2.5
  230. charge pipe install help
  231. VRSF DPs installed, 2 new codes
  232. Anyone have BMW power pack ECU reflash specs?
  233. Weird VANOS behavior, JB4
  234. E92 335i FBO 50% E85 Dyno 435Hp & 480Tq
  235. Just installed 5"ets fmic
  236. Yellow limp mode indicator on, CC-ID 29. Removing JB3 but need to delete codes?
  237. Dinan Stage 2
  238. Bizarre problem
  239. Should I Reset Adaptation Values? (Misfire On Startup After New Plugs and Coils)
  240. E30 exhaust manifold/s on n54
  241. JB4 stage 3 N54 upgraded have question
  242. Engine Light, studder, and clicking/knocking noise under load
  243. Ordered a VRSF down pipe, this thread will hold my review on it
  244. Needs help on Bavarian Technic
  245. 29DC from cleaning MAP sensors?
  246. need chip!!??
  247. Friend wants to unbolt exhaust on 550i
  248. 6AT Trans Upgrade options
  249. poof
  250. Misfire into limp mode