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


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  1. N55 mids vs cutting out cats on n54 mids?
  2. Coolingmist 2.3 Gallon Meth Tank Venting Question
  3. Is this a passenger side...
  4. WTB: BMW PE y-pipe
  5. single turbo
  6. Will this throw a code?
  7. n54 tranmission question
  8. RB Turbo install LOG's inside w/fuel pump map 5
  9. O2 sensor position question
  10. Chip tune for 135i, 2011 model
  11. Berk axle-back race exhaust
  12. Car appears to be possessed or completely failing
  13. Cheapest place to find coilpacks - 12137594937
  14. Anyone used NTX Coding as a tune?
  15. Okay so no problems then..BIG problem
  16. Broke line while doing solenoid bypass
  17. Keep berk mids or go back to stock N54s?
  18. N55 JB4
  19. midpipes...n55 vs berk street
  20. Strange exhaust leak noise!
  21. N55 Vishnu DP Deal
  22. Vargas turbo Black Friday / cyber Monday deal
  23. AMS intercooler install HELP!
  24. Question about cobb and emissions
  25. JB4 Problems. Help please?
  26. What will I need to install FMIC and charge pipe?
  27. Biggest Stock Problem N55 JB4
  28. How to handle the dealer from here...
  29. Epic Motorsports in Miami?
  30. My tech said: " Nahh..... it's not bad!! I trust him.
  31. ER Intercooler on the way
  32. CP-E Charge Pipe Blowing Off
  33. AC compressor has "come apart"
  34. N55 vs N54, Meth FSB Compatability?
  35. Awesome PTF Dyno Tune
  36. Fans on max, red overheat warning, limp mode
  37. Do I need a tune for Downpipe
  38. JB4+ Cobb?
  39. High startup revs
  40. JB4 Connector
  41. Fuel upgrading?
  42. JB4 with DCT
  43. ETS vs AMS Intercooler
  44. rough idle?
  45. New 3" Intake and 3" Charge Pipe
  46. AR Design N55 Catted Downpipe
  47. N55 with ppk2 modding
  48. First time in a dyno
  49. BMW Performance Power Kit - worth $700?
  50. Sound like surging?
  51. Clutch Slipping.
  52. Rat Causes Engine Replacement
  53. Mods....Need Input
  54. 135i N55 6MT, hanging or holding revs?
  55. Help choosing mids
  56. P3 codes
  57. Dinan Stage 2 and Stage 3 Setup questions.
  58. Anyone tried to install custom oil cooler behind front kidney grills
  59. LF non-resonated center pipe
  60. Fuse Box 135i
  61. Thud with clutch pedal release
  62. Racechip?
  63. JB4+FMIC
  64. Anyone know how to remove these?
  65. Ac low pressure port
  66. What are my tune options?! n55
  67. N55 Downpipes
  68. N55 fault code help please
  69. JB4 reading codes after they have been deleted
  70. Magnaflow exhaust review
  71. 2B3A fault code
  72. New Injectors Installed N54
  73. N54 smoking
  74. Does anyone know the part # for this plastic piece?
  75. Aftermarket Catted Downpipe?
  76. Wavetrac install, new bearings?
  77. Mishimoto Intercooler?
  78. Driving 135i with N54 engine
  79. Rogue tranny mount
  80. AEM Meth Install
  81. Sport Button Anytime?
  82. coolant everywhere, fan got nuts
  83. Any DCT failures yet?
  84. Help! Post Clutch Install.
  85. [PICS Added] BMS Intake N55 - MAF Connector line not long enough??
  86. Preferred Exhaust for N55 135i
  87. Getting Spark Plugs Replaced
  88. Dealer replaced BANK1 fuel injectors - should i pay to replace the others?
  89. Improve Throttle Response
  90. N55 downpipe in Mass, inspection issues?
  91. N55 Midpipes
  92. Is The N54 A Ticking Bomb?
  93. Cooling problem?
  94. What are this?
  95. |||E8X 135i ACTIVE AUTOWERKE "GEN-II" SIGNATURE EXHAUST - E8x N54/N55|||
  96. Water pump and HPFP failure
  97. SMART mods
  98. OE vs TRW
  99. Performance Exhaust Install
  100. Aftermarket Charge Pipe - Why decreased lag?
  101. Aging 135i's. Worsening Fuel Econ? Power Down?
  102. PPK1 Question
  103. Pte 6262 n54
  104. Need some input from n55 cobb users
  105. Exhaust on 2008 135 Coupe
  106. E85 thoughts..
  107. Need Help deciding best Tuner for 135i
  108. Keeping car from downshifting?
  109. AFE Exhaust
  110. Berk Midpipes
  111. DCT reset procedure?
  112. "Pop" while taking off, power down
  113. Order of Modification
  114. PTF e-tune
  115. Aftermarket Clutch and E85
  116. RPM's Shifting
  117. M Performance Parts LSD.... Drexler ?
  118. JB4 G5 + WedgePerf Flash Data Logs
  119. AWD conversion
  120. Going Green @ N54Tuning
  121. Blow off on an n55
  122. Finally Modding my N54 - questions and comments welcomed
  123. max power out of the 135?
  124. Evolution Racewerk Charge Pipe & Injen Intake
  125. Boost gauge options
  126. Opinion wanted: Burger "N55 Stage 1" or "N55 JB4"?
  127. AMS IC install
  128. Best Cobb price
  129. Cobb + PPK1
  130. JB Stage 1 worth installing or just upgrade
  131. Le Mans blue 135is small build
  132. Help with N55 Exhaust
  133. N54 AFE Intake issues
  134. 135is tune
  135. JB4 Problem..seeking wisdom
  136. We need a general FAQ document like this
  137. Noob question!
  138. BMW Performance Exhaust (What's it come with...confused)
  139. 335is Stronger Clutch
  140. Thanks for all of your insight!
  141. more turbo noise
  142. jb+
  143. ||| Active Autowerke | E9X/E8X N55 Performance "Green" Air Filter |||
  144. Just Curious
  145. New to the form- N54 Upgrade thoughts
  146. Another Water Pump Down
  147. What makes a BMW Performance Exhaust different
  148. JB4 Question: Gauge Sweep After Map Change
  149. No codes with N55 catless downpipe?
  150. Brake Sensors
  151. AA Exhaust. Should I buy ?
  152. Damaged cores on IC
  153. Best Performance?
  154. Cobb AP Datalog, please review
  155. how can I tell?
  156. what "Tune" is this?
  157. Aa gen 2 exhaust
  158. Money Best Spent: PPK v1 or Performance Exhaust
  159. Muffler delete n55
  160. SSK fitment
  161. Aftermarket suspension review
  162. Help! What Kind Of Fuel?
  163. Error codes
  164. Anyone live close to AR design? Area code(303)
  165. Anyone have issues w/diffuser after exhaust install?
  166. Power problems with my 2011 BMW 135 6 speed
  167. ACT Street Clutch and Clutch Stop
  168. Launch Control
  169. SSK for n55
  170. Walbro LPFP 455
  171. Affect of OEM resonator in midpipe?
  172. Clutch Stop
  173. cold weather, cold start noise
  174. Datazap Update! User controllable individual axis
  175. bms flash question
  176. What mods to prolong life of my car
  177. front left quarter panel, where to buy
  178. Quad Exhaust Diffuser Question
  179. Recommended shift points
  180. Help me assess my situation
  181. Question autowerk exhaust?
  182. Anyone have stage 2 with DCT?
  183. DP with stock exhaust?
  184. Twin 2.5" vs single 3"
  185. wastegate question please
  186. Drone on CP-E Catback, with stealth Pipe & resonators.
  187. Charging malfunction!
  188. DP Questions
  189. Why and how do injectors go bad?
  190. disappointed with Dinan Stage 2 for 2012 BMW135i
  191. Probably a dumb question, longevity and mods
  192. Aa gen 2 exhaust clip
  193. Need Help: N55 135i stalled by itself!
  194. Wot Limp Mode
  195. JB4 Stage 2 install issue
  196. ALL DME codes LIST
  197. PPK hardware mods
  198. N55 DP Wagner vs BMS
  199. N55 engine problem
  200. Electrical question.
  201. How to know? Cobb for 2012
  202. Overheating.. need your guys input
  203. Tax return $ coming. What to buy?:)
  204. which exhaust?
  205. Dealership PPK Question
  206. Check engine..?!?
  207. Which order do cylinders go in? Front to back?
  208. Intake Valves at 40k miles! Pictures inside
  209. Heres a weird one for you gurus...
  210. Jb4 G4 board ,, Need Hex file link
  211. Clutch advice.
  212. N54 Marvins Mystery Oil before oil change...
  213. Dyno question
  214. bmw performance exhaust mod
  215. My mod list
  216. COBB Tune for N55 (Was: Dinan Stage 2 N55 Tune w/ 9 Months of Warranty Remaining)
  217. Resonator only video
  218. Berk race axle back rubbing
  219. N54 Timing Chain Maintenance
  220. Installing JB4 on N55..do it yourself or hire someone?
  221. N55 Loss Of Power No Dash Lights Other symptoms. Help?
  222. Cobb Accessport and DCT lag
  223. Any tuner offer cold start delete?
  224. Check engine light - no codes
  225. Vote for the Best Tune for N55
  226. Misfiring issues at the track ?! Opinionsss
  227. Stock + JB4 Dyno Analysis
  228. BMS to stop selling DPs in CA
  229. New PPK / New exhaust / New 19's
  230. what mods next? need to feed the addiction!
  231. Question about cobb race maps.
  232. DP Fix Question
  233. Any Verts out there that have a Cobb tune??? Apparently not... :(
  234. N54 Modification Path
  235. DP dilemma
  236. Autowerk exhaust fit 135 and 128?
  237. 2009 n54 135i Rear Duct
  238. PPK1 vs PPK2
  239. Dyno before/after valve cleaning
  240. vrsf fmic 5" or 7" any have it?
  241. Low Pressure Fuel Sensor Replacement While Walnut Blasting
  242. going to get a protune what should i expect?
  243. BMS SSK
  244. Driveline Rattle after Rear Main Seal install?
  245. N54 n55 mufflers interchangeable?
  246. Methanol Questions
  247. Where did you buy your PE?
  248. Any one running WOT box?
  249. Rotors & Brake pads combo
  250. how to install cobb while charging battery