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


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  1. Pure stage 1 turbo intalled!!!
  2. anyone figure out how to get rid of idle issues with catless dp yet?
  3. Basic boost switch meth injection for cooling purposes
  4. Might need new turbos: recommendations?
  5. can't install ap cobb help!
  6. Can you mount meth pump in fender?
  7. Cobb Map then Alpina TCU Flash & Codes: Question
  8. Options for monitoring/logging boost on N55?
  9. Alpina TCU Code So Good SHOULD Be Standard
  10. Post JB4 Install Woes
  11. Can you put race gas in a stock n55??
  12. VRSF Catless Downpipe/Muffler Delete Review
  13. Is swapping my catless DP out every year my old option?
  14. 2012 N55 part out *FEELER*
  15. Is it normal to NOT have a check engine light after installing Catless Downpipe?
  16. N55 muffler delete throwing codes
  17. Anyone replaced a oil filter housing gasket?
  18. Muffler Delete in LA Area?
  19. Intake Question.
  20. Lets make my 335xi push 400+HP?
  21. Car surging badly!
  22. Reduced power light at WOT
  23. Not Feeling The Power (Post Mods)
  24. n55 ppk1 dash command log
  25. stuck between mods...
  26. RMPs are very jumpy at idle...
  27. Anyone know what make is my exhaust muffler?
  28. Corsa axle-back fitment on sedan, or other options?
  29. Vishnu Charge Pipe Issue - Need Help!
  30. VRSF chargepipe questions
  31. Who has catless DP's (N55) that still needs to pass ODBII inspection?
  32. Irvine-Looking for help on jb4 UNinstall
  33. What Map Should I Use?
  34. N55 JB4 Circuit Board?
  35. mid pipes / x pipe options -
  36. Vendor that ships to California
  37. LPFP needed with meth kit?
  38. rough idle
  39. 2012 335i vs 2014 Porsche 911
  40. Should I purchase the additional extended warranty?
  41. does my 2011 e90 335i needs a clutch?
  42. JB4 or cobb with FBO
  43. THUMP from rear end. Just had Wavetrac on
  44. If I have a muffler delete do I lose power?
  45. first log with cobb ap
  46. Exhaust / Muffler question ?????
  47. Bosch Spark Plug - ZR5TPP33S Need to be gapped for N55?
  48. Do I have to flush out my Gas tank after every e85 use?
  49. Single Mass Flywheel for stock clutch
  50. Sea Foam
  51. I think there is a problem with my car
  52. Should I be able to take a stock Camaro SS?
  53. fbo jb4 e85 vs fbo jb4 e85 vs camaro
  54. JB4/Mod Advice
  55. BMW PE Manufacturer
  56. PTF - 116 unleaded race map
  57. Golf Tee Mod/Vacuum Line Unplugged Issue
  58. Cobb FMIC - anyone tried one?
  59. Dinan stage 2 vs stock N55: dyno results
  60. Which one gives the most HP from DP
  61. Looking for pics of ER black ano FMIC installed on a BMW
  62. Oxygen sensor gone bad?
  63. FMIC worth it on a DD?
  64. Considering Catless DP
  65. Best Replacement Plugs Stock + Cobb Aggressive
  66. FS: AR Design N55 Catless Downpipe
  67. just installed BMS meth kit!
  68. Black Friday is Coming!
  69. JB4 Mobile Android App Pics
  70. JB4 install: Leave flex fuel wires unplugged?
  71. Teaser pics: Mark's E88 135i Vargas Stage 2 N55
  72. My car shut off while coming to a stop at 10mph
  73. clicking sound coming from engine bay after JB4 Install
  74. Dinan stage 2 vs stock N55: drag strip results
  75. Reading and clearing error codes
  76. N55 performance
  77. Can I run Meth with 40% E85 60% 91 Mixture?
  78. PE Exhaust install
  79. Has anyone used Bardahl products?
  80. 335i E92 M3 FRONT And OEM REAR Bumpers Gots To Go!!
  81. How much boost should I have on COBB Stage 1 Aggressive?
  82. finally have too much power for my clutch!
  83. DP or BMW Meth Kit w/ Cobb AP
  84. Cold temps + cold engine = long cranks?
  85. Pure turbo N55 on the dyno!
  86. Frequency Intelligent Exhaust
  87. Dynoed my bone stock 335i N55
  88. 135i DCT PPK1 / PE dyno
  89. Please help cobb issues
  90. JB4 G4 Questions
  91. Vanos Recall and Walnut Blast
  92. Rod knock... Engne is blown!
  93. funny sounding engine and vanos recall
  94. Identify bolt under turbo
  95. N55 Rough Idle / Stall on Cold start
  96. N55 and e85
  97. N55 JB4 Stage 2 vs ISO
  98. Running E85 with Cobb AP V3
  99. Any DP Fix for N55
  100. Stage 1 Aggressive on California 91 safe?
  101. NJ/NY Dyno
  102. Single-digit weather, bouncing idle, SES: P112F (MAP problem)
  103. Jb4 vs ppk vs dinan vs ??? 335i
  104. 335i - lack of low end torque?
  105. Map 7 No Difference?
  106. 100% Stock - Interested in a Tune
  107. How can I run 100% e85?
  108. New Jersey Dyno
  109. My Alpina trans flash scared the crap out of me just a bit today...
  110. Alpina B3 Flash Behaving Oddly
  111. Vanos bolt recall and JB4
  112. jb3 or jb+
  113. N55 VRSF DP Install
  114. N55 335i and e85
  115. n54 xi downpipes
  116. JB4 catless DP which map is better MAP 2 or MAP 5?
  117. Just had my N55 Walnut Blasted
  118. bms dp install
  119. Thermostat Gasket or OFHG?
  120. Help With Codes After E85
  121. Clicking/Ticking Noise
  122. Any one selling downpipe?
  123. Problems with OBD port
  124. Dealer void my warranty
  125. Datalogging using Cobb AP for an N55 w/JB4
  126. plz help low coolant warning!!
  127. Level 10 Automatic transmissions
  128. To Senior modder on Stage 2 turbos.
  129. delete please
  130. RB N55 Stage 2 Hybrid Turbo Upgrade Tester needed>>>
  131. Cobb and JB4 Stack
  132. N55 Turbo Failure
  133. Which Cobb map should I be running?
  134. jb4 and SES P0100
  135. Raced a Stage 2+ S4 B8
  136. Ambient Thermal Management FMIC Review
  137. New plugs now bucking/jolting
  138. Bunch of codes on my 335i
  139. I did something wrong installing E85 wires. Need Help
  140. Top Mod/upgrade for compliance with CPO
  141. COBB AP3 stage 1 Aggressive boost question
  142. VTT Christmas Sale!!! You’ll Shoot Your Eye Out
  143. downshift 3rd to 2nd car jerks and hesistates
  144. Cobb Question
  145. Just blew my stock charge pipe
  146. Pure Stage 1 N55, 5 Month Review
  147. Noo boost on highway need help please
  148. First Mods?
  149. Double the price?
  150. Some Vishnu help :)
  151. Charge pipe install difficulty
  152. Attention N55's with BMW PPK2
  153. which cp to buy
  154. OFHG Replacement
  155. Transmission question for 335 owners w/6AT only...
  156. BMS Intake vs K&N Drop in Filter
  157. Bms downpipe
  158. Stage 2 turbo
  159. Whooshing sound after repair
  160. 2013+ ECU flashing
  161. Codes After DP Install: P2CF4 and P0133
  162. Jb4 small boost leak
  163. Error Codes
  164. ER FMIC Questionable finish?
  165. jb4 and scanners
  166. Engine Malfunction/Reduced Power after car wash
  167. Need Help Identifying this Part
  168. First performance mods... JB4 + CAI $550 good deal??
  169. cobb vs jb4 on n55
  170. Downpipe gasket/kit
  171. Help needed: BMS N55 intake Bracket
  172. long cranks on cold starts fixed hopefully
  173. Dbc malfunction help
  174. How safe is it to run E85 fuel?
  175. Exhuast flapper rattles.
  176. Question about noise in serpentine belt area - 2011 335i n55
  177. Charge Pipe cracked at 24,000 miles
  178. ams intercooler fit n55?
  179. Logs For Review: FPO & COBB N55 - Want feedback on values
  180. Problem with jb4
  181. Catless DP CEL fix?????
  182. COBB AP (version 2.0): undocumented OTS maps for 98GOB
  183. Whining Noise at High Rev's
  184. Review: N55 custom tune by ProTuningFreaks
  185. Exhaust options?
  186. OBD Emissions Monitor - Cobb
  187. anyone know where to find electronic valve controlled exhaust?
  188. Where should i put my electronic exhaust cutouts?
  189. Help! Low Psi! :(
  190. FBO with BEF
  191. My Mod List:
  192. N55 2C71: Charge air pressure sensor: pressure too high
  193. cobb v3 n55 + meth
  194. Clicking sound from under hood when locking/unlocking
  195. N55 PureTurbos Intake Inlet pipe
  196. VTT HPFP Upgrade: Official Release of the "Single Barrel Shotgun"
  197. N55 oil temp sensor
  198. Running an Accessport w/o CP?
  199. FMIC
  200. 500-550 whp? Safely?
  201. 8AT 335i xdrive, whats' it run with cobb stg1 no other mods?
  202. My car feels slower with e85
  203. do i need new o2 when on jb4
  204. Generic o2 lambda sensor
  205. N55 down pipe fix found!
  206. N55 - Turbo/Tune Upgrade Help
  207. Anyone using a Cobb catted DP?
  208. VTT Production Updates! Shipping N54 Stage 2+ & N55 stage 1
  209. Cobb AP Misfire at idle?
  210. PE exhaust with secondary cat delete
  211. (Updated 2.14.15) Strange sound from my new VRSF CP w/C clip
  212. VTT Customers' Results N55
  213. Where to purchase Cobb AP V3 in Canada
  214. Oil Squirter for Valvetronic
  215. Someone has remove your speed limit from N55
  216. n54 crank
  217. Pure turbo order list help
  218. 335is clutch
  219. Correct amount of e85
  220. Arrival of Stage 2 Turbos
  221. ignore
  222. Which Tune do you have?
  223. N55 PURE Stage 2 Turbo Upgrade
  224. Do I have to have a backend flash or tune to run 100% e85?
  225. **JB4 Mobile App Video**
  226. VANOS Recall question
  227. COBB not working after DME update
  228. COBB Protuners for N55
  229. Is there a way to make my 335i faster by upgrading engine internals?
  230. What type of Harness?
  231. heavy misfire-whats on my plugs?
  232. Procede V5 Rev2.5 N55 install instructions
  233. Finally did some logs
  234. Meth Kit With Cobb Questions
  235. JB4 install question
  236. Engine revving up and down, now shutting off
  237. Loud sound on acceleration
  238. N55 Cobb stage 1 aggressive safe on 92 octane?
  239. Aquamist HFS-4
  240. Pure Stage 1 vs VTT Stage 1
  241. Odd noises from engine bay, buzzing and rattling
  242. Question on codes pulled with JB4 - 36FD
  243. Help me! About N55 JB4 install
  244. High IATs from reading JB4
  245. RWD vs. X-Drive Downpipe
  246. Clutch Options
  247. jb4 questions
  248. Cobb Stage 1 Aggressive. AIR TO FUEL RATIO
  249. What are mid pipes / x pipe options
  250. FMIC & Injen Intake n55