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View Full Version : 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications


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  1. Car randomly stalled in neutral.
  2. Meth with Cobb
  3. Cobb owners in the North East
  4. JB4 code Help!
  5. AccessTUNER Pro Software Now Available for BMW N54
  6. Emission Passed with Catxxx DP, JB4 & BMS DP Fix
  7. 135i upgrade pics
  8. PPK Question
  9. 1M vs. 2008 135i Shifter Throw & Linkage
  10. RB turbo upgrade?!
  11. 335i and 135i Differential FAQ (No LSD, really?)
  12. My 12' 135's 2nd night out at the 1/4 mi!
  13. How man labor hours for rear diff and bushings
  14. PPK Goes in Tomorrow
  15. Quick question!!!!
  16. Shell gas station Vpower eats gas fast..
  17. Introducing the New COBB Tuning Website!
  18. Cobb / jb4
  19. OEM SSK Grinding ???
  20. Berk Race Axle Back Exhaust Installed today...
  21. Launching DCT with JB4 Stage 2 Map 2
  22. Techron concentrate plus fuel injector cleaner.
  23. Driver side headlight WTF
  24. BMW AccessPORT v4.00 BETA Maps Now Available
  25. 1 series M intercooler is the same as 135i
  26. CX Racing Intercooler for N55
  27. Active Autowerke | N55 Software (Flash)
  28. race fuel c16 or e85
  29. Revisiting obd based boost readings
  30. Gas Mileage
  31. 3rd Gear shifter vibrations
  32. JB4 TPMS Suppressor!!
  33. Anyone burning/leaking oil after DP install??
  34. Vishnu Catted DP = Check Engine???
  35. So how much of a PITA really is the DP install?
  36. buying used jb4?
  37. Running LEAN at high RPMs?
  38. LSD Install Shop in San Diego
  39. Self tuning solutions?
  40. Exhaust help, Please!
  41. FS: Quaife ATB 3.46 LSD
  42. Dyno Day '08 135i (E85 Map 7)
  43. Mounting tabs for cxracing intercooler?
  44. Anyone have UR cateless downpipes installed on there car?
  45. Boat towing
  46. CPO = Complete Peace Of Mind ??
  47. Blov off valve question
  48. raspy exhaust, sounds like metal vibrating at certain RPM
  49. Broken Hose
  50. N55 clutch upgrade
  51. N55 clutch upgrade
  52. Can anyone identify this plug on my JB4
  53. Those who Purchased LSDs
  54. K&N Air Filter
  55. Which makes more power?
  56. AccessPORT Support Now Available for Australian N54 BMW’s
  57. Problems on the dyno
  58. Cobb vs ESS flash tunes?
  59. Synapse BOV...opinions?
  60. Corsa Exhaust On N55 135i
  61. Any N55 w/BMW PE in Boston area?
  62. Bms Intake Installed!
  63. Strange idle....
  64. Catless DP Engine Light on?
  65. for sale Procede V4 N54
  66. BMW PE Installed
  67. What's the best full exhaust system for the BMW 135 n54
  68. Dinan v JB3 or leave it alone
  69. P30FF - down one turbo... where to look?
  70. Abbreviations
  71. best exhaust for n54 135i? max gain and best noise
  72. MagnaFlow vs. Berk Technology vs BMW performance
  73. Exhaust question
  74. DIY: N54 Hybrid Intake System
  75. BMW performance kit
  76. Nitrous In a Bag
  77. Procede Rev3
  78. Catless all the way to stock muffler. Sounds!
  79. turbo lag
  80. DIY: N54 Injector Coding Via INPA
  81. N54 axle back exhaust on n55
  82. BMW N54 AccessPORT v4.01 BETA Maps Available
  83. Berk Technology Exhaust "AirHorn" sound?
  84. Cobb vs. JB4
  85. New to the 1er
  86. 2009 135i 1 series questions
  87. Question regarding Stage 2 PPK
  88. Custom snorkel bracket for DCI's?
  89. Exhause Picture
  90. Midpipes or downpipes?
  91. Axleback + downpipes + stock midpipe
  92. Jerk while crusing. JB4 Lagfix?
  93. BMS OCC & WW Meth
  94. Launch Control With JB4 Check Engine Light...
  95. OEM Clutch Longevity
  96. Procede V3 help
  97. N55 IC Dyno Results
  98. Engine stalling after ppk tune
  99. Anybody caught by BMW with a JB4 or Cobb?
  100. Speedometer Reading for DCT
  101. COBB 135i Performance Gain #'s (vs. 335i, 535i, z4i, etc.)
  102. BMW SSK Update
  103. What Down Pipe Would You Recommend For a N55?
  104. Will an ER Chargepipe (post-June 2009 build) couple / fit with a Helix FMIC?
  105. Berk Exhaust
  106. What water/meth mixture are you running?
  107. JB4 help
  108. Magnaflow exhaust anyone?
  109. HPF IC installed today
  110. How to Glue a Shift Knob ???
  111. Help with coolant leak please
  112. Why no High Flow Cats?
  113. 2012 135 chip question
  114. Price Drop on PPK1
  115. BMS WW Meth Kit Problem
  116. Does anyone have aftermarket blow off valve?
  117. What is required to make a BIG TOM FMIC fit on the n55 135i?
  118. Direct fit FMIC
  119. PKK1 verification
  120. Boston area N55 w/ CP-E Exhaust?
  121. HELP!!! What are these noises coming from my engine bay!? Ticking!?
  122. DP Install and 30FF (boost leak)
  123. Engine tapping/ticking?
  124. Downpipe only w/chip
  125. PPK2 Hardware Install
  126. Picking up my 135 tonight!
  127. Which Catback would be the best result for n54?
  128. New guy new to BMW have some questions.
  129. UUC offering 15% off this weekend
  130. ER Charge Pipe for 135I
  131. EFI Logics Custom Tuned Stage 2 335ix
  132. passenger side low beam flicker
  133. Cobb - I'm sooooo disappointed!
  134. 2011+ DCT Park Button
  135. exhaust studs on catalytic converters...
  136. FMIC Size
  137. Cobb - Cruise Control
  138. What is the normal coolant & engine oil temp of your 135i
  139. Intercoolers
  140. Why you must tune your N54!
  141. Blow Off Valve/DV Sound Thread!
  142. Are DCI's mandatory?
  143. light weight fly wheel
  144. down shift issue
  145. DME Upgrade with JB4
  146. Upgraded FMIC Reduce Lag?
  147. Anyone know for certain what the factory boost pressure of an N55 is?
  148. 2.5" vs 3"
  149. BrakeStand issues
  150. Need tool recomendations for BMW's
  151. Thinking of picking up a 135i for DD
  152. N55 DCT stalling/dying at idle
  153. Drop in air filters. Read before changing...important
  154. Jb4 and cobb question
  155. Magnetic oil drain plugs
  156. Question regarding N55 oem fmic piping size?
  157. PWM meth kit and P3 gauge hook up
  158. 29DC 2fdb 2a2d codes - limp mode
  159. What to go with first
  160. N54 Bolt-Ons Without a Tune ??
  161. Help me Mod my car - nice budget
  162. Anyone had twin Turbos replaced?
  163. Finally Pulled the trigger, ordered the BMS Meth Kit!
  164. aftermarket intake questions
  165. JB4+ VS. BMW Performance power kit
  166. Help with codes!
  167. Replaced spark plugs at 27k
  168. Cobb dyno numbers and tune question
  169. Does the 1M Coupe have the same CDV as the 135i ?
  170. Car jerks hard when lettong off throttle at WOT/full boost
  171. Need input on tune/Vishnu PROcede
  172. Slow until about 4700 rpm in 3rd gear..? terrible 1/4 :[
  173. Wavetrac experiences
  174. Rattling noise wastegates
  175. BMS Short Throw Clutch Stop Install comment/review
  176. Maddad Whisper axle-back only / where to buy
  177. Short Shifter request
  178. Requesting how to or info on downpipe install
  179. o2 sensor gone bad?
  180. Custom Calibrated Stage 2+ 1M vs OTS Map
  181. misfire cylinder 2.. help me diagnose?
  182. key fobs not responding to car
  183. What is this noise? (Video)
  184. Any cam choices?
  185. Choke at 6000 ish rpm?
  186. Just got a 135i - warranty question
  187. Help with p3 boost gauge
  188. BMW performance exhaust - US vs EURO
  189. whats the cobb code number for 2008 135i????
  190. help does diff exhaust really matter with tune?
  191. BMW replacing my turbos
  192. Rattling issues
  193. JB4 + DCI from burger?
  194. TIAL BOV
  195. Anyone ABOVE 50k miles w/out issues?
  196. Installing Vishnu pwm n55
  197. Offset column boost gauge pod options?
  198. Anyone dyno JB4 Map 8 yet?
  199. weird noise
  200. Berk Exhaust
  201. JB4 with downpipes+more.. slower than stock 135i with only bmw ppk...
  202. Berk street Axleback vs. Maddad Whisper Axleback
  203. Cobb Question
  204. BMW Power Kit Stage 1 install problem
  205. Berk street or berk race exhaust
  206. Dinan Stage 2
  207. Custom Cobb Stage Two + FMIC Maps from Akuma
  208. Berk VS. AA
  209. Oil on a spark plug...
  210. i need help !!!
  211. i need help !!!
  212. VANOS values
  213. Code 29CD on my N54
  214. Talk to me about JB4 map5
  215. yet another ebay part
  216. Track Events for HorsepowerFreaks (PIR HPDE - May 7th and Import Face Off - May 27th)
  217. Charge Pipe Install Help
  218. Newb Questions
  219. Cyba scoop screws
  220. aFe VS BMS
  221. Turbo replacement questions...
  222. Can't separate midpipes from downpipe (N55)
  223. Jb4 help
  224. Cutting Power?
  225. Have Your Wastegates Rattled?
  226. Dyno'd my full bolt on 135i
  227. Dyno'ed my 09 135i =) 400+ club
  228. What have you gotten away with?
  229. Power Steering Loss
  230. Delete please
  231. Procede V5 rev 2.5....any new maps released?
  232. car runs fine stock, jb4 makes it run haywire. anyone in houston have a cobb/pro/etc?
  233. LSD install deal in Atlanta
  234. Maddad Whisper ftw!
  235. New Pickup: AFE stage 2 intake
  236. Berk street exhaust, midpipe and DP - drone???
  237. Injen n54 dci - car feel slower?
  238. Another misfire thread...
  239. Don't really now how to explain but...
  240. another oil cooler thread
  241. misfires
  242. JB+ and BMS DCI a good combo?
  243. Which PPk Do I Need?
  244. Cobb vs. JB4 Unbiased
  245. need some help making a decisions on a AFE exhaust
  246. Coding with Cobb installed?
  247. What is the downside to 100 octane
  248. Dissapointed in 1/4 results
  249. CEL / Limp mode
  250. Catless DP's make less heat?