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  1. Is there a reason why no one touches the internals of the engine?
  2. Ovtune ECU tuning experience/review
  3. (force) fitting an ARK DTS exhaust onto an AWD IS
  4. Engine of all engines (calling all engine experts)
  5. New IS350 Owner!! I have questions...
  6. Transmission Surges
  7. 2006-2013 IS350 Bolt ons and tune. N/A 300+ Rwhp!
  8. Installed a true CAI
  9. PPE Headers + Invidia Mid Pipe + HKS Hi Power
  10. Adding F Sport Intake to Magnflow axle back exhaust, too raspy?
  11. Intake mod results
  12. Stand Alone Engine Management
  13. Lexus IS: Supercharging, Turbocharging and Nitrous Modifications
  14. Meistershaft GTS Exhaust in a IS350?
  15. DIY midpipe swap advice
  16. Intake that doesn't take air from engine bay?
  17. Need your opinion, Invidia midpipe stays or goes?
  18. 08 IS250 AWD/Auto mods?
  19. Add Magnaflow (or alike) to stock IS250 system, ok?
  20. Manzo exhaust with res delete
  21. Lexus HKS exhaust
  22. Upgrade IS 250 exhaust, best choice for deep tone?
  23. Best way to eliminate rasp?
  24. RR Racing vs. TTFS Engine Tune
  25. AFE Pro DRY S Stage-2 Intake + Invidia Mid-Pipe + Tsudo SP2 Axleback V2
  26. PPE/Mazzuri Header Performance Gain Discussion
  27. Invidia Q300+Mid-pipe question
  28. Another Intake question..
  29. CEL after installing Injen air intake on 2011 ISF
  30. E-cutouts
  31. Deleting resonator?
  32. In search of the perfect sound...(Invidia Axel+ Megan Mids+ Joez intake)
  33. Joe Z intake + Megan Mid + Tsudo Axleback
  34. Performance upgrades
  35. My Tuning Tech Frank Smith Experience
  36. The Black Sheep - European IS220d Performance Mods Thread
  37. Megan midpipes / invidia axelback
  38. Invidia midpipe + CEL = :(
  39. IS350 2007 K&N intake before and after
  40. IS250 Awd '07
  41. Exhaust help please.
  42. help - new midpipe gaskets
  43. ECU Tuning Questions/Answers
  44. OS Giken Super Lock LSD for me
  45. Intake modification
  46. Intake kit choice HELP !!
  47. TTFS Tune for the IS250?
  48. Boost awd 250 or upgrade to 350
  49. Exhaust issues
  50. Exhaust suggestion needed : Axle/Cat-Back for an AWD IS250 2011
  51. Can i add an exhaust control valve to my joe z exhaust?
  52. AWD 2007 IS 250 Front Pipe replacement
  53. Where to buy stiffer exhaust hangers?
  54. 350 lextacy build
  55. You think RR Racing will tune our cars too?
  56. Tanabe Exhaust Torque Specs
  57. is 250 to 350 engine swap
  58. Recommended site to buy Megan Mid Pipe?
  59. Coil pack upgrade = more power?
  60. Need your opinion! To midpipe or not to midpipe
  61. Tanabe Exhaust Axleback Gaskets
  62. Installing intake and midpipe in a few days.. tips??
  63. Vibrant resonator
  64. Which exhaust would you recommend for my 07' is250 AWD?
  65. Muffler Delete?
  66. 2007 Lexus Is350 muffler damage?
  67. My 2006 IS350 Exhaust blocked
  68. Electric SuperCharger
  69. Supercharging my lex
  70. Exhaust
  71. Had clutch replaced and now 1st/2nd are misaligned
  72. Tanabe exhaust system
  73. hks + invidia mids?
  74. HKS + invidia mids rasp?
  75. HELP!! intake or midpipe?!
  76. HELP! Need help identifying leaking (?) part....
  77. Drop in air filters
  78. Spectre intake
  79. Any confirmed fixes for transmission code p2757?
  80. Auto Acceleration with Cruise Control on
  81. Invidia q300 exhaust mid pipe
  82. Best intake ? ?
  83. transimission slipping
  84. Adventures in installing a lightweight battery, part 2.25
  85. Where to buy mapecu3 / hks f-con harness for 2is?
  86. I have a 2007 IS300
  87. IS250 RWD Transmission Swap?
  88. Aftermarket clutch not disengaging
  89. alumunium insulator for main exhaust
  90. Another I installed a Tanabe Axle Back Thread
  91. Need a new mid pipe for my 06 is250
  92. Tsudo exhaust!!
  93. F Sport Exhaust Gaskets
  94. PPE header / O2 conditioner question
  95. Ark Performance, are they still in business?
  96. Invidia Midpipe question!
  97. Tune Questions for an IS250
  98. What's your 1/4 mile time with bolt on I/H/E?
  99. What's your 1/4 mile time with ECT PWR Mode on?
  100. Magnaflow Glasspack
  101. HKS hi power exhaust w/ ap2 tips, silencers
  102. IS250 AWD Exhaust Help
  103. "Satellite switch" in 2008 Lexus IS 350???
  104. F sport exhaust too quiet?
  105. Safc ii
  106. does anyone backfire when you slow down (f-sport exhuast)
  107. PPE Header Installation Shop in Bay Area
  108. Exhaust Question Researched and still nothing need help
  109. Invidia Midpipe + Axleback
  110. Can I Swap an is350 motor into my Is250?
  111. looking for ultimate performance cai to buy
  112. Is250 on nitrous
  113. New at Lexus
  114. Adventures in installing a lightweight battery, part 2
  115. Heat Wrap Afe Intake Is350.
  116. HKS SSM look-alike for IS250/350?
  117. Are there any knock-off f-sport intake arms?
  118. Stillen Supercharger kit
  119. IS350 Afe Intake stage 2 plastic tube, heat shields.
  120. Retrofitting iS350 Supercharger To IS250
  121. Invidia mid pipe back ordered?
  122. Road Race Motorsports Piggy back dyno test
  123. Websites to order Joe Z intake still down?
  124. tein ss coilovers question
  125. Does 3IS intake pipe fit 2IS?
  126. Drive Shaft Loop for IS2Gen
  127. Bridgestones or Hankooks?
  128. Can someone post the DIY FSport Intake installation instructions from Sewell please?
  129. Suggestions on exhaust setups?
  130. Engine Air Filter Showdown: K&N, Stock, Aftermarket
  131. OBX Racing Sports Axleback Exhaust System
  132. Fender vents
  133. Invidia mid pipe?
  134. Exhaust
  135. IS350 w/ F Sport Exhaust with F Sport Intake (High Quality Video)
  136. Mid -Pipe Only to Improve Sound and Performance
  137. Best sounding exhaust set up?
  138. Upgrades for my Is250 auto 08?
  139. Joe-Z Intake
  140. Low end torque got worse with intake?
  141. exhaust tip options
  142. High output alternator- where to get?
  143. Exhaust for 2IS 08..Need help
  144. PLEASE HELP! IS250 won't shift out of 3rd code P0125, P2757
  145. K&N 69-8704TP intake on the second gen?
  146. Road race Motorsport piggy back
  147. HKS silencers?
  148. Best intake for an 06 IS250
  149. Injen Intake Fitment Help
  150. Black Soots From Exhaust all over rear bumper and trunk
  151. Invidia mids
  152. Megan Mid Pipe
  153. Muffler Delete Pros & Cons
  154. 3is aftermarket axle back exhaust
  155. F-sport exhaust where to purchase?
  156. Ark Throttle Controller
  157. invidia midpipe help!
  158. Tsudo Axle-back Installed
  159. Resonator Delete
  160. Aem is250 and is350???
  161. Hks hi-power or joe-z exhausts?
  162. IS350 HKS hi-power+intake in tunnel
  163. Your thoughts of FSPORT intake
  164. WTB Fsport intake and Fsport exhaust
  165. IS350 catless setup with tanabe + invidia
  166. FS and wtb belong only in classifieds please
  167. Ecu flash
  168. any ideas on what this could be???? IS250 wont start
  169. ppe headers
  170. Turbo
  171. Has to be a way.....
  172. NEW Denso Iridium TT (twin tips)Spark Plugs
  173. can someone tell me if this sound is,normal?
  174. cant find joez exhaust is350c
  175. 3IS owner question about specific set-up
  176. IS350 True Dual X-pipe into Invidia Q300 Build
  177. F Sport Sway Bar and Intake?
  178. Invidia midpie install and O2 sensor troubles
  179. New Mufflers Only
  180. I need help to buy headers for My IS350
  181. Are 12's Possible?
  182. Advice on Ebay Ap2 Exhaust Tips
  183. Injen intake install... Check engine
  184. Changing tips of f sport exhaust
  185. HKS Hi-Power AxelBack Exhaust Dies off after 3500rpm, Possible Solution: Intake?
  186. HKS Hi Power Question
  187. In Search of No Rasp Exhaust Set-Up
  188. Clarification given on Forced Induction (S/C) 4GR FSE Engines
  189. Is HKS Hi-Power Exhuast Worth getting rid of Stock Exhaust Altogther?
  190. Question about exhaust?
  191. Benefits of Aluminum Radiator
  192. Installed F sport lower intake box
  193. ECU tuning, no really.
  194. 18" f-sport wheels & tires for sale
  195. QUICK POLL: ppe headers w / o cats??
  196. Where to buy awd ppe headers?
  197. Removing Primary and Secondary Cats IS250
  198. question about ppe headers and living in cali
  199. Water leak in the rear bottom floor!!
  200. good performance chip for 2012 lexus is250
  201. Remove resenator
  202. So I gutted out my primary cats
  203. Magnaflow Custom Exhaust
  204. arma intake system in my 250~
  205. Looking for best no-rasp exhaust AWD
  206. Exhaust gasket question
  207. ARMA Variable Exhaust Valve?
  208. ark dt-s exhaust
  209. Best intake?
  210. Arma supercharger is250
  211. limited slip for a mk3 supra compatible with a 3IS?
  212. Joe-Z intake
  213. H.I.D Headlight options
  214. Magna flow resonator
  215. Invidia midpipe with stock exhaust
  216. Let's play...... Guess that wheel
  217. Any way to improve shift performance on is350?
  218. IS250 Greddy EVO3 Exhaust
  219. Factory dual sport exhaust option
  220. M2 exhaust on ebay price change?
  221. Carbon fiber driveshaft
  222. MapECU worth it
  223. Installing injen sp series intake
  224. QUICK HELP! INJEN Intake question
  225. need exaust system advice
  226. Supercharger help
  227. Opinions on Invidia Q300 axle-back + Invidia mid pipes
  228. PPE Headers/Stock Mid-Pipe/Invidia Q300 Axle-Back combo?
  229. IS250 AWD PO430 code
  230. In search of exhaust setup
  231. PPE headers w/o cats + dual exhaust
  232. Anyone with Invidia Midpipe & Muffler Delete
  233. Is350 in the 1/4 12's Roll Call
  234. JoeZ exhaust drone caused by F-Sport intake?
  235. Debating on what exhaust to get for my 07 IS350
  236. D1 Spec throttle controller
  237. Is250 with the HKS S/C questions
  238. exhaust pipe diameter at oxygen sensor
  239. 06 IS250 Evaporator bad or Maybe not?
  240. muffler vs exhaust (axle-back)
  241. 2011 Lexus is250 RWD cold air intake whcih one is the best???
  242. 2006 is350 quick exhaust clip
  243. '09 is 250 thinking of installing intake & exhaust?
  244. 2008 lexus is350 exhaust
  245. 3is intake
  246. mapecu tuning and install
  247. Lexus is250 x pipe ?
  248. So I installed the Injen SP intake on my IS250
  249. Meisterschaft GT Haus Exhaust for IS350?
  250. Questions on 1jz swap.....