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


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  1. Water pump failures
  2. E90 n55
  3. Jb4 map 2 without DP?
  4. CAI
  5. Looking to get
  6. bms intake cleaning
  7. Lost cause...
  8. Moving On
  9. Weird Steering Noise Randomly When Hot. Video Inside.
  10. N55 JB4 log
  11. Transmission flash
  12. Reduced Power Mode after JB4 Install
  13. Catless DP without tune? Blow stuff up??
  14. 2 step n55
  15. best intake for n55
  16. Question regarding downpipe
  17. Would really like to know what exhaust this is...
  18. 02 connector help urgent
  19. Upgrade JB4 stage 1 to stage 2, DME version question
  20. Used jb4 from 135i to 335i
  21. What is an acceptable timing correction?
  22. COBB AP on N55 - PROs and (many) CONs
  23. VTT N55 DBB Stage 2 update
  24. California N55 owners with downpipes
  25. Installed JB4 - 2 sensor plugs didn't snap fit - CEL
  26. N55 BMW PE on a N54?
  27. WTB JB4 will pay for everything and extra money in your pocket
  28. JB4 NON-ISO Firmware
  29. AFE Cat Back slightly modified to fit 335ix
  30. Cobb uninstall now car won't start...Please Help!!
  31. Just bought an N55...need help/advice.
  32. RESOLVED: JB4 ISO Waterpump (fix in 1st post)
  33. 2E0F, 2EF2, 2EF3 etc & other JB4 Codes (misfires and more)
  34. VANOS recall letter...anyone get these?
  35. Turbos stopped working! Any Help Please!
  36. E92 Performance Power Kit is FSC code only??
  37. too good to be true?
  38. Oil Cooler Mounting Location
  39. VRSF Catless Downpipe Review
  40. Keep my E90 or get a 1995 Pontiac Grand Am?
  41. *WANTED* E90 Turner Exhaust
  42. Cobb Logs - How do they look?
  43. Questions regarding 101 octane and Flex Fuel Wires
  44. Spark plugs changed and..
  45. If you installed FF wires, click here
  46. JB4 stages?
  47. So my buddy is on the fence on getting an Alpina TCU flash
  48. jb4 emmissions testing.
  49. E85 no flex fuel wires
  50. Charge air temps Cobb datalog
  51. JB4 with BMW PPK & PE
  52. N54 UR vs VRSF DPS
  53. Downpipe fitment issues
  54. It's time to play another round of "what's that leak?"
  55. N55 exhaust
  56. *Solved* aFe Magnum Force Stage 2 Si - CEL after 2 days (P0171: Bank 1 too lean)
  57. Check Engine Soon light... Caused by DPs?
  58. Another COBB code thread
  59. Jb4 software?
  60. N55 335i Strange humming noise
  61. Quick Story and Review: Car purchase, JB4, VRSF Downpipe, ER Chargepipe
  62. JB4 User Setting
  63. N55-doesn't make boost with jb4 but does with flash
  64. S55
  65. Coolant leak
  66. Won't Rev at WOT.. Misfire?
  67. limited slip differential - Group Buy happening - please join!
  68. Just installed VRSF downpipe
  69. Race additive/fuel
  70. 335i manual issue
  71. Bentley Manual... N55 HPFP
  72. F32 435i Exhaust Recommendations
  73. 550 clutch in 335/135
  74. Boost Leak?
  75. Installing FMIC tomorrow. Any last words of advice?
  76. jb4 n55 codes need help to remove bmw x1 335 135
  77. Impressive MPG!
  78. downpipe install help!!!
  79. E85 with JB4
  80. M Performance Exhaust on sale at dealership $1055.65
  81. 335 exhaust mod idea - This may be off the wall crazy but...
  82. Already Misfiring??
  83. Adding coolant: what? Low coolant light
  84. VTT N55 Stage 1 upgrades in stock and shipping
  85. PCV System on N55 (may be reason for reduced carbon buildup)
  86. Possibly the first vargas stage 1 turbo :)
  87. What is the cord for?
  88. How much would you pay for a set of stock N55 mufflers?
  89. Can you pass NY state inspection with Catted Downpipe
  90. N55 VTT JB's not being Delivered and no ETA...
  91. Stalling?
  92. For sale or trade Cobb AP v3 n55
  93. 2step and NLS
  94. GoPro Mic Test (VIDEO) on N55 + PPK v2 + PE + DCT
  95. Electrical problem? I hope
  96. M4 engine mounts?
  97. [Readers Opinion] My future moves
  98. 2011 335xi Corsa Exhaust
  99. Another JB4 N55 Vargas Turbo Dyno
  100. been running jb4 map 2 without DP or ntercooler for about a month
  101. Question about BMS vs. Wedge Backend Flash
  102. Cobb Success Story
  103. Codes and Half Engine Light
  104. FMIC with stock couplers-Forge vs Wagner
  105. Racechip Tunning
  106. Cyba Tips Install In Nj!?!
  107. How is demand for N55 335i's? Considering value if I sell mine...
  108. Shift lag in manual transmission N55s
  109. sparkplugs for N55
  110. Anybody know what this n55 fault code is?
  111. cobb firmware update--do I need to reflash?
  112. E90 N55 oil cooler
  113. 335is muffler on a 335i (n55)
  114. CXRacing FMIC ordered..
  115. N55 Stock diverter valve
  116. shops in ny/nj
  117. JB4 inconsistencies
  118. VRSF or AA FMIC??
  119. Muffler Delete Engine issues
  120. WTB: Helix n55 intercooler
  121. Anyone ever seen massive axial play on N55 turbo?
  122. Back end flash questions (guide?)
  123. cobb ap
  124. jb4 stage 1 n stage 2
  125. Anyone here getting tired of their car?
  126. FMIC Fitment
  127. JB4 or Cobb None worked for me
  128. dp fix for n55
  129. MOTIV Motorsport/PTF Hardware release
  130. Jb noob
  131. Should I upgrade DME for Cobb?
  132. E85 or Meth
  133. Has anyone had their JB4 reset while they're driving?
  134. Jb4 "g4"
  135. "smart" o2 simulator? possible dp fix
  136. What's the best FMIC for N55?
  137. aftermarket dp on warranty
  138. JB4 Android App With Bluetooth?
  139. Jb4 misfire
  140. CP with/without Meth Bung?
  141. First Post, Cobb AP3 & Unsupported ROM Experiences
  142. Did my Vanos bolts just go??? (cracked CP)
  143. is it just me or is something wrong?
  144. seniors on stett oil cooler with thermostat delete
  145. Super cheap catback exhaust idea (with video clip)
  146. PPK Stage 2 - Extra Plug at Radiator Fan
  147. VANOS recall done and spark plugs are loose!!
  148. Coolant Overflows tank when open.
  149. Freshly installed JB4 - ISO question
  150. Performance Exhaust Owners in LA
  151. Jb4 ppk2
  152. Help in san antonio area!
  153. misfire cylinder #4 after spark plugs and valve cover gasket
  154. Still can't datalog...wtf
  155. Who's using Cobb ATR?.. custom E30 mapping
  156. HPF Gen 2 exhaust
  157. N55 + a turbo upgrade
  158. Max PSI
  159. 2011 335i Whirring Sound from Engine Bay?
  160. FS: ((N55)) AR design Downpipe, Jb4, and Cxracing interooler
  161. Car wont start...no power only flashing lights
  162. Some White Smoke @ Redline Normal?
  163. Is there a DIY for CP install?
  164. Recommendation needed for JB4 or JB Stage1
  165. Anybody that bought their car used and didn't activate Sirius... 2 months free
  166. Need help with log reading
  167. 335i xdrive 2009 feels weird today
  168. JB4 setting for going to dealer
  169. Jb4 g5 iso set up
  170. Meth map question and problem
  171. HPF Gen 2 Exhaust Fitment
  172. e92 coupe INJEN INTAKE FULL BLACK n55 engine only for sale
  173. COBB AP N55: unsupported ROMs
  174. Engine oil - N55 335 / 10-60 ?
  175. 335xi transmission noise - please help
  176. What do i need to buy for quad exhaust?
  177. COBB N55 Charge Pipe
  178. VRSF Downpipe Review
  179. anyone have experience with JL Motoring?
  180. new to logging
  181. DME Updated - Lost All Coding - Including PPK
  182. Can someone with a stock airbox post their IATs?
  183. ShaudFAB Top and Bottom Mount twin scroll manifolds
  184. Khoalty experience?
  185. N55 how many times WOT a day?
  186. Having trouble installing FF wires 11 N55
  187. No N55 Race Maps available, right?
  188. How many miles has your n54 been tuned?
  189. Coolant High Temp help
  190. Installed Cobb Tuner, affected my Alpina flash?
  191. noob exhaust question
  192. jb4 issue
  193. N55 Blowing Giant FIREBALLS after tune!
  194. Vanos bolts breaking during road trip?
  195. N55 catless exhaust with resonators
  196. N55 jb4 going into map 4, clutch smell?
  197. Car smokes with JB4 on Map 5?
  198. DME Encoding?
  199. Catless E93
  200. Shiftech (UUC?) Short Shift Kit Install and Performance
  201. MOAR BOOST PLS - jb4 question
  202. Jb3 2.0 How To Datalog
  203. anyway to make performance exhaust louder?
  204. DME Updates/upgrades
  205. TURNER Corsa Performance Axle-Back Muffler System
  206. Any N55 Engine Mount DIYs out there?
  207. e92 cobb tuner v2 unit (Broken screen :()
  208. FS 4" CYBA Burnt Tips
  209. N55 Thermal Imaging
  210. N55 Thermal Imaging
  211. Power loss late in 20 min track sessions
  212. FMIC lower charge pipe
  213. the age old dilemma PPK1 vs aftermarket
  214. Sparkies changed:)
  215. Muffler Delete W/Straight Pipe vs Full Exhaust System
  216. N55 runs an 11.93 1/4 Mile?
  217. I need opinions/advice
  218. BMS DP, Cel fix and COBB tune question
  219. Meth kit or stick with E85
  220. Gurgling, burbling N55 on deceleration
  221. Trouble after PROcede V3 install (P0108)
  222. Which Harness Do I need referring to the JB4?
  223. N55 Emissions testing
  224. which DP should i get?
  225. Injen intake
  226. FlexFuel Wires question
  227. N54 plugs on N55 PPk1?
  228. Finishing touch-BMS Intake on FBO N55
  229. Any news on the VANOS recall front?
  230. Debating putting back my stock airbox with my foam filter
  231. My N55's Manufacture date? Cobb flash-able DME?
  232. Question about JB4
  233. Good news- getting my VANOS replaced this week!
  234. Vrsf Fmic & Cp
  235. Pure or Vargas Stage 1?
  236. stacking tunes question
  237. On my road to FBO
  238. Cobb or Jb4?
  239. Dealer replaced injector
  240. So not only did I have my VANOS system taken care of under warranty...
  241. 335i leaking red fluid
  242. FMIC, DP and CP choices
  243. IAT report: BMS Intake for N55 vs. stock with foam filter
  244. Odd shifting issue with '11 335i E92 N55
  245. Turbo upgrade - Available options
  246. DME upgrade option
  247. a quick JB4 question
  248. Fastest shifting method for Auto 1/4 mile?
  249. Tmap Sensor maxed out
  250. Anyone install these BMS cowl filters yet?