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  1. Intake upgrade vs ECU relearning? gains?
  2. No Plug-In Tuner?
  3. IS250 2008 parasitic draw 135mA steady
  4. IS350 Bolt-ons
  5. Vibrant Exhaust Setups?
  6. 09 is250 awd start up struggle w/ strange smell
  7. Tuning
  8. Advice for clutch Kit for 2007 IS250
  9. What do you recommend for flashing my ECU
  10. Where is radio amplifier is250 at?
  11. Lexus 2012 IS250
  12. 10% off PPE Headers at Figs for Black Friday through 11/27
  13. Injectors
  14. 17150-31120
  15. Power loss from IS 250 muffler delete?
  16. Improving performance on IS250
  17. Best exhaust for an '06 350?
  18. How to improve laggy shifts?
  19. IS 350 Performance HELP
  20. IS 250 Lexus Hit From the Rear
  21. Joe z intake?
  22. Walnut blasting service near New England area
  23. Oil Change: 2008 Lexus GS 350
  24. Is it possible to purchase the HKS supercharger kit?
  25. Lexus IS 350 and IS 250 model 2011
  26. 2006 Lexus IS250 P2757 Error Code
  27. ECU fiddling
  28. Wanted: Tech details on how ECU manages Spark, Fuel, VVTI etc
  29. Straight Pipe
  30. 2IS IS-350 open Diff to LSD thread
  31. Tsudo Exhaust question
  32. ISO F Sport honeycomb grill for 09
  33. My day on the dyno
  34. Anyone test out OV's Flex Fuel kit?
  35. Adding Vibrant resonators to Invidia midpipe?
  36. FSport Intake Air Filter
  37. Help with error code is 250awd 09
  38. okada plasma direct ignition coils
  39. Difference between is250 and IS350 stock Catylatic Converters
  40. PPE Headers sound with stock exhaust
  41. Where can i buy PPE HEADERS
  42. Crankshaft Sensor location
  43. Performance serpentine belt
  44. 2015 is250
  45. Steering of IS250C
  46. R9K Tuned Reflash ECU
  47. Custom True Dual Exhaust Setup
  48. 2009 Lexus IS250 Engine Noise
  49. How many spark plugs are in the engine?
  50. Noise in manifold is250 awd 2009
  51. tips and tricks?
  52. Manzo and Tanabe exhaust dilemma
  53. Is this a BS product?
  54. Tuned 2IS long term reliability
  55. Replacing Cat
  56. Injen Intake Installation Problem
  57. Problems with high rpm
  58. Where can I buy the F-sport air filter?
  59. What's a real, nice exhaust that crackles/pops?
  60. Query: RB26 swap for IS250 AWD
  61. Stock Cats Question
  62. PPE headers & Joe Z catback
  63. Takeda Intake Install - two hours later
  64. 2011 Lexus IS250
  65. 7200rpm or 7400rpm?
  66. Exhaust: Looking for deeper tone without added cabin drone.
  67. Looking to start building up my IS250
  68. Looking for more power
  69. Jerking
  70. Acceleration Problems after 70mph?
  71. 2012 IS250 headlight getting haze at top of light, fixable?
  72. Spark plug and wire help
  73. Looking to tone the exhaust down
  74. Which throttle body and shorty header?
  75. Thinking Of Getting Tanabe and Invidia
  76. OVTuning Hand held tuner
  77. AEM ETI Intake With CEL, VSC, And trac lights on!
  78. Upgrading to F-Sport Exhaust
  79. Carbon build up advice Lexus IS250
  80. OV Transmission tune. (Kinda)
  81. TTFS ECU upgrade help
  82. 2013 IS350 Engine Performance
  83. Increasing rev limit on ECU tune
  84. ECU tune effect on gas mileage for daily driving
  85. Limited slip differential upgrade for IS250
  86. LS500 TT 3.5L V6 engine in a 2IS?
  87. Denso TT Spark Plugs
  88. Different F-Sport Accessories?!?
  89. Joe Z/PTS cat-back street version availability
  90. Best 'quiet' exhaust
  91. Universal twin loop muffler?
  92. Ovtune ECU Flash Tune Review
  93. Full Catless?
  94. Tanabe/Resonator delete
  95. 325's fit
  96. F-Sport Intake how to DIY?!?
  97. Invidia Q300 - little or no drone? (IS250)
  98. '09 IS250 AWD Performance Upgrades
  99. Exhaust perfromance..
  100. LSX IS250 Engine Swap
  101. Tanabe left side muffler gasket
  102. Where to buy midpipe?? located in California
  103. 2008 Lexus IS250 Exhaust, Mid Pipe, and Intake Help
  104. Intake Question
  105. Help with catback build
  106. Help identifying exhaust
  107. ECU Tune IS250
  108. Exhaust 2009 IS250
  109. how far can we push our IS350 engine while remaining N/A
  110. IS350 0-60 time with RRracing tune
  111. Which mufflers fit?
  112. 8 Speed Swap Idea
  113. 07 IS350 Modding Questions
  114. Questions on Turbo build
  115. Help with P0137 After Mazzuri Headers
  116. Are there any side effects to tuning our engines?
  117. Is this tune for real? 25whp gain!
  118. OBD Tune? RR Racing? TTFS?
  119. OBX Racing Headers
  120. OS Giken LSD installed finally in 2008 IS 350
  121. Megan Midpipe + Tanabe Axleback
  122. 2is Tanabe + Megan vs. PTS JoeZ vs. Ark
  123. 08 IS250 Straight Pipe?
  124. Midpipe
  125. Straight Pipe
  126. IS250 AWD Invidia mid pipe question
  127. Possible Custom Intake
  128. have anyone tried Agency Power ecu flash
  129. Good resonator for IS350?
  130. PPE Headers actually work?
  131. 2006 Lexus IS350 JoeZ Performance Exhaust NEED HELP
  132. E85 Tune Available for IS350 Yet?
  133. Is there a reason why no one touches the internals of the engine?
  134. Ovtune ECU tuning experience/review
  135. (force) fitting an ARK DTS exhaust onto an AWD IS
  136. Engine of all engines (calling all engine experts)
  137. New IS350 Owner!! I have questions...
  138. 2006-2013 IS350 Bolt ons and tune. N/A 300+ Rwhp!
  139. Installed a true CAI
  140. PPE Headers + Invidia Mid Pipe + HKS Hi Power
  141. Adding F Sport Intake to Magnflow axle back exhaust, too raspy?
  142. Intake mod results
  143. Stand Alone Engine Management
  144. Lexus IS: Supercharging, Turbocharging and Nitrous Modifications
  145. Meistershaft GTS Exhaust in a IS350?
  146. DIY midpipe swap advice
  147. Intake that doesn't take air from engine bay?
  148. Need your opinion, Invidia midpipe stays or goes?
  149. 08 IS250 AWD/Auto mods?
  150. Add Magnaflow (or alike) to stock IS250 system, ok?
  151. Manzo exhaust with res delete
  152. Lexus HKS exhaust
  153. Upgrade IS 250 exhaust, best choice for deep tone?
  154. Best way to eliminate rasp?
  155. RR Racing vs. TTFS Engine Tune
  156. AFE Pro DRY S Stage-2 Intake + Invidia Mid-Pipe + Tsudo SP2 Axleback V2
  157. PPE/Mazzuri Header Performance Gain Discussion
  158. Invidia Q300+Mid-pipe question
  159. Another Intake question..
  160. CEL after installing Injen air intake on 2011 ISF
  161. E-cutouts
  162. Deleting resonator?
  163. In search of the perfect sound...(Invidia Axel+ Megan Mids+ Joez intake)
  164. Joe Z intake + Megan Mid + Tsudo Axleback
  165. Performance upgrades
  166. My Tuning Tech Frank Smith Experience
  167. The Black Sheep - European IS220d Performance Mods Thread
  168. Megan midpipes / invidia axelback
  169. Invidia midpipe + CEL = :(
  170. IS350 2007 K&N intake before and after
  171. IS250 Awd '07
  172. Exhaust help please.
  173. help - new midpipe gaskets
  174. ECU Tuning Questions/Answers
  175. OS Giken Super Lock LSD for me
  176. Intake modification
  177. Intake kit choice HELP !!
  178. TTFS Tune for the IS250?
  179. Boost awd 250 or upgrade to 350
  180. Exhaust issues
  181. Exhaust suggestion needed : Axle/Cat-Back for an AWD IS250 2011
  182. Can i add an exhaust control valve to my joe z exhaust?
  183. AWD 2007 IS 250 Front Pipe replacement
  184. Where to buy stiffer exhaust hangers?
  185. 350 lextacy build
  186. You think RR Racing will tune our cars too?
  187. Tanabe Exhaust Torque Specs
  188. is 250 to 350 engine swap
  189. Recommended site to buy Megan Mid Pipe?
  190. Coil pack upgrade = more power?
  191. Need your opinion! To midpipe or not to midpipe
  192. Tanabe Exhaust Axleback Gaskets
  193. Installing intake and midpipe in a few days.. tips??
  194. Vibrant resonator
  195. Which exhaust would you recommend for my 07' is250 AWD?
  196. Muffler Delete?
  197. 2007 Lexus Is350 muffler damage?
  198. My 2006 IS350 Exhaust blocked
  199. Electric SuperCharger
  200. Supercharging my lex
  201. Exhaust
  202. Had clutch replaced and now 1st/2nd are misaligned
  203. Tanabe exhaust system
  204. hks + invidia mids?
  205. HKS + invidia mids rasp?
  206. HELP!! intake or midpipe?!
  207. HELP! Need help identifying leaking (?) part....
  208. Drop in air filters
  209. Spectre intake
  210. Any confirmed fixes for transmission code p2757?
  211. Auto Acceleration with Cruise Control on
  212. Invidia q300 exhaust mid pipe
  213. Best intake ? ?
  214. transimission slipping
  215. Adventures in installing a lightweight battery, part 2.25
  216. Where to buy mapecu3 / hks f-con harness for 2is?
  217. I have a 2007 IS300
  218. IS250 RWD Transmission Swap?
  219. Aftermarket clutch not disengaging
  220. alumunium insulator for main exhaust
  221. Another I installed a Tanabe Axle Back Thread
  222. Need a new mid pipe for my 06 is250
  223. Tsudo exhaust!!
  224. F Sport Exhaust Gaskets
  225. PPE header / O2 conditioner question
  226. Ark Performance, are they still in business?
  227. Invidia Midpipe question!
  228. Tune Questions for an IS250
  229. What's your 1/4 mile time with bolt on I/H/E?
  230. What's your 1/4 mile time with ECT PWR Mode on?
  231. Magnaflow Glasspack
  232. HKS hi power exhaust w/ ap2 tips, silencers
  233. IS250 AWD Exhaust Help
  234. "Satellite switch" in 2008 Lexus IS 350???
  235. F sport exhaust too quiet?
  236. Safc ii
  237. does anyone backfire when you slow down (f-sport exhuast)
  238. PPE Header Installation Shop in Bay Area
  239. Exhaust Question Researched and still nothing need help
  240. Invidia Midpipe + Axleback
  241. Can I Swap an is350 motor into my Is250?
  242. looking for ultimate performance cai to buy
  243. Is250 on nitrous
  244. New at Lexus
  245. Adventures in installing a lightweight battery, part 2
  246. Heat Wrap Afe Intake Is350.
  247. HKS SSM look-alike for IS250/350?
  248. Are there any knock-off f-sport intake arms?
  249. Stillen Supercharger kit
  250. IS350 Afe Intake stage 2 plastic tube, heat shields.