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


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  1. Add 75hp 114lb of torque to the 335i motor!!!!
  2. TT all the way
  3. Aftermarket tuning options currently available for N54 turbo engine
  4. Any N54 reliability issues so far?
  5. First affordable Downpipe for 335i >1k adds 26whp!
  6. Info on the N54
  7. Here's a little sampling of what a "chipped" 335i can do with LSD
  8. The "FACTS" about exhaust's on Turbo cars. Informative read.
  9. N54B30 cutaway demo
  10. Direct Injection
  11. Link to View Siemens Piezo Injector for the 135i . . .
  12. 135i exhaust - true "dual" like 335?
  13. N54B30 Oil Temps
  14. Software Upgrade Future
  15. BMW PERFORMANCE CATALOG, OR DINAN??
  16. Aftermarket exhaust
  17. Anyone Considering A Blowoff Valve for their 135i?
  18. Short shift kit from the facotry?
  19. 2007 Engine Tech: How the N54 turbo engine works (must read!!!)
  20. Anyone else worried about the fuel pump failures???
  21. Sprintbooster Anyone?
  22. Cheap Alternative to Vishnu and AA
  23. 335i with DINAN reflash and Catback exhaust
  24. Dyno results just in: PROCEDE vs. Turbo Tuner vs. Juicebox (on a bone stock 335i)
  25. TurboTimer
  26. Profec / EVC / VPC Question
  27. If BMW doesnt put LSD (limit slip diff) in 135i, would aftermarket LSD void warranty?
  28. Tuner dissecting and upgrading turbos from n54 engine!
  29. Procede v2 announced!
  30. reprogram safe?
  31. fuel pump failures
  32. Clutch
  33. HOW BIG ARE THE STOCK TURBOS
  34. Wanna see 135i's sick potential?! -- Procede 335i with mods hangs with modded ///M5!!
  35. Thought you might like this, it's about creating your own tq curve with procede v2.0
  36. Racing Dynamics
  37. 335i recall?
  38. about vishnu tuning
  39. HELP! i only have 89 octane here.
  40. 0-60 135 opinion
  41. Troll no more.....good bye Audi, hello BMW!!
  42. Sh!ts and giggles, was bored on the throne-->
  43. Quad exhaust for the 135i..
  44. Food for Thought: Full Test: 2007 BMW 335i Coupe
  45. Nasty experiences with the twin-turbo...
  46. Exhaust Gas Scavenging (56k warning)
  47. Overheating issues?
  48. I like the rasp
  49. Dinan Software
  50. Dinan 135 products
  51. Q ABOUT TORQUE
  52. Eisenmann Exhaust Sound for 135i ?
  53. 135 Vs 128 Engine
  54. Twin-turbo triumph at “Engine Oscars” International Engine of the Year
  55. eisenmann meisterschaft exhaust
  56. How concerned are you about the biturbo's reliability?
  57. Procede V2 335i outruns new M3, Porsche Carrera 4, RS4, SL55 AMG
  58. OCTANE FOR THE TWIN TURBO
  59. 335i = dual exhaust 135 = dual tips passenger side
  60. Are there any sites which cover the (135i) engine internals?
  61. Check this out.. 335i breaks 400 WHP!!
  62. N54 hits over 400whp ...!
  63. Reliability Issues with Turbo/Twin Turbo Engines?
  64. 135i with 380hp from German Forum and Tuner:-)
  65. Can i modify my 135i and hope nothing breaks?
  66. soon to be ///M killer!
  67. what will you do?
  68. how far has the 3.5 turbo been pushed?
  69. Larger Turbos?
  70. speed limiter, 155?
  71. Spot the Dipstick
  72. will the 135 rear differential be one-piece?
  73. Has anyone heard of this?
  74. AC 135i: 360hp 332lb torque
  75. tuning the 135i engine
  76. PROcede issues thread.
  77. Altitude effect on 135i turbos
  78. Dinan 335i software announced! -- 384hp / 421 tq
  79. Ward's 2008 10 Best Engines
  80. Posible Overheating solution??
  81. Cats & Cooler
  82. Intake Manifold
  83. First perfromance mod?
  84. what size are the stock turbos?
  85. CDV & Short Shift Kit
  86. Quad exhaust on 130i
  87. 135i Oil Cooler?
  88. Installing my 335i's Procede to my new 135i ?
  89. LSD......
  90. Top speed limit (elec.) on the 135i
  91. Turbo Lag from Piggyback or Flash?
  92. 384 hp / 421 tq: DINAN 135i Tuning
  93. Long term maint. of the twin turbo
  94. x6 v8 in 135i
  95. Sprint Booster
  96. Boost Gauge?
  97. Official 1-series Coupe Performance Parts (tii style) Catalog HERE!
  98. How much boost (PSI) for the 135i?
  99. Continued discussion from the locked "how much boost" thread
  100. Does the 135i have an intercooler?
  101. I just thought of no lsd in a new way..
  102. Hear of This: Turbo Tuner
  103. Procede and BMW warranty
  104. Dinan 135i
  105. XEDE installation
  106. LSD and Ediff
  107. N54 Technical Service Bulletins
  108. The 135i will come with an AGM battery!
  109. MPG firgures?
  110. Speculation regarding Dinan 2 flash
  111. Overboost (from N54 Engine Tech Manual)
  112. A little tid-bit on the ZF box.
  113. Wow, JBS2HHR tune + RR DP's making some serious power.
  114. Aftermarket Engine upgrade
  115. Not sure where this should go ...
  116. Meth injection?
  117. Corsa Exhaust
  118. Helix Attaché.
  119. Custom Performance Engineering - 335i standback
  120. Increased resale value with Dinan???
  121. LSD + Final Drive
  122. Caution: for people who are thinking of tuners: Wastegate issue
  123. what would be a decent horsepower # for the 135i
  124. Best Short Shifter?
  125. A new article from Steve Dinan
  126. 335i Parts?
  127. What Code Reader To Use?
  128. FREE JB2 courtesy Terry Burger in socal
  129. Engine Break-In Period?
  130. Slick 50 (or similar products)
  131. Yawn. Try harder Hartge.
  132. Dinan Booster opinions?
  133. Seen this yet??? AA Processor
  134. New and improved 3.0 TT in 2 years?
  135. Riss Racing Downpipes
  136. 335i UR Downpipes Fit the 135i!!
  137. STEPTRONIC vs SPORT AUTOMATIC
  138. What/when will you make your first Mods?
  139. Supersprint Complet Exhaust System
  140. Exhaust System
  141. Engine & System Monitoring
  142. Sprint Booster Installed
  143. Active Auto Processor installed
  144. Dinan Warranty?
  145. 135i/335i engine specific information?
  146. Anyone get a dinan tune yet?
  147. Weird question...
  148. Golf Tee!?
  149. More Engine Break-in
  150. Toasty Smell
  151. BMW Genuine Performance Parts
  152. Heads up on blow off valves on the 135i
  153. Any 135i owners already itching to tune?
  154. So what's the latest news on 335/135 going into limp mode?
  155. Just got back from Active FMIC installed
  156. Any new exhaust setups in progress out there?
  157. Mods at altitude
  158. Stage 3 done
  159. CDV on 135
  160. Milltek Exhaust not available
  161. GIAC tuning
  162. Adjustment software
  163. Riss Racing needs car for Bimmerfest...
  164. What could this sound be????
  165. Pic of my custom AA FMIC for those who asked
  166. BMS filter kit
  167. Dinan vs. Procede?
  168. has anyone dynoed a 135 on a dynojet?
  169. Must Have Mods???
  170. BMS Ultimate combo
  171. Plug & Play - add 40hp
  172. ECU in UK ?
  173. Any news on the Dinan upgrade?
  174. Dinan Tune
  175. Anyone install a Short Shift Kit Yet - SSK ?
  176. whos going to be the first with exhaust
  177. E85
  178. AA Processor = No stored codes
  179. Dinan software update
  180. BMW announces a performance version of the 1 and 3 series. (tii)
  181. Helix Attache piggyback pics
  182. I was VERY BAD today....ordered....
  183. 135i: ZF or Getrag auto transmission?
  184. Just ordered the BMS Intake
  185. Does the 135 have an exhaust flap?
  186. Can Anyone Explain.....
  187. UUC clutch stop?
  188. Dinan, Intake, CDV Replace
  189. Dinan vs. BMW Factory Warranty Discussion
  190. Dinan Flash Questions
  191. Whats a good 135 Tuner??
  192. TELL ME!
  193. 135i No oil cooler??
  194. Power Recipes
  195. custom boost gauge
  196. any dinan #'s at the track yet?
  197. BMW Performance Intake vs. K&N
  198. This goes in this weekend...more hp to follow
  199. What's the best first mod?
  200. DYNO Results: DINAN/BMS Intake
  201. GIAC VF Engineering
  202. NICE vid's of PROceed vs. E55 vs. E63 vs. JB2
  203. BMS Filter installed with pics
  204. Automatic transmission reset
  205. JB2H installed today - quick review
  206. Main differences in JB2 and AA processor installs
  207. SSTT Dyno Results
  208. I wonder if Dinan software will adapt timing if you put 100 octane into the tank?
  209. Buzz
  210. 135i:first mods+dyno
  211. free clutch modification (CDV)
  212. v3 Procede just announced! Now simply plug-n-play
  213. 135i w/SSTT simulated 1/4 mile dyno VIDEO
  214. PROcede v3 boost control on catless 6MT *datalog*
  215. BMW Performance Exhaust Tii
  216. Eisenmann for our 135i
  217. B&M or Kartboy short shifters
  218. Dinan vs. SSTT vs. Procede 2.02
  219. some potentially bad news for ppl planning to mod the N54 engine
  220. tuning question
  221. a word about engine managment
  222. 135 fuel capacity
  223. I finished my break-in with ProCede V3!
  224. found a better intake but it's more expensive
  225. Counter opinion on break-in
  226. what is CDV DELETE
  227. Catless configuration and schedule maintenance
  228. Just ordered UUC SSK
  229. 135i does quarter mile on dyno
  230. What mods are you getting?
  231. BMS or Helene Performance Air Intake?
  232. turbo specs? part #'s? maps?
  233. n54 power limitations
  234. Ok.. I know I will get the old....
  235. question about active processor
  236. Warning to those post 03/08 build 135i owners wanting to tune
  237. Upgraded HPFP
  238. Is anyone planning to get shorter gearing?
  239. N54 Oil Recommendation
  240. What a PITA.
  241. Underrated at 300hp/300ft-lbs?
  242. I was told BMW will offer their own software upgrade.. only 380ft-lb
  243. completely Turn off All traction control
  244. Borla exhaust for the 135i
  245. Quad Exhausts?
  246. New Dinan flash info...
  247. stepstronic lunging
  248. SI B 12 10 08: N54 – Aftermarket "Engine Performance Tuning" Kits
  249. Its official,no more.....
  250. Shark Injector---is coming