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Engine Tunes/Mods [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum
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  1. Upgrades for Vortec 4200?
  2. Good news about custom computer tuning
  3. Performace Chips?
  4. Westers Performance Tune nearly available.
  5. I-6 engine modifications (suggestions)
  6. computer chip
  7. fuel filter location
  8. Best Choices For Performance and Mileage
  9. Engine upgrades question
  10. CUSTOM COMPUTER TUNING.
  11. where is the fuel line located??
  12. oil filter
  13. Best Sparkplugs for 4.2L
  14. first oil change
  15. when to change spark plugs?
  16. dip stick question
  17. Changing motors
  18. Cams, Pistons, Crank???
  19. Westers Tune
  20. oil change help asap
  21. Installing the Westers Tune
  22. Computer Chips
  23. THE TUNE IS HERE! THE TUNE IS HERE!
  24. Westers Tuning Info for Trailvoys
  25. Just added a jet module
  26. Stock 4.2L I-6 chassis dyno power numbers?
  27. Engine Block Heater!!
  28. Those with Borla and Wester's Tune.....
  29. Improving Gas Mileage and Power - Leased Vehicle
  30. jet performance? what do we have?
  31. nitrous on a 4.2
  32. 4.2L Port & Polished Head
  33. Bolt on performence mods...
  34. Westers Tune or Custom Headers??
  35. PCM upgrade
  36. JET SCU 2000 Intall Help
  37. 4.2 Wait4Me Tune
  38. stage 1 or 2 jet chip
  39. performance modules
  40. Another Wester's question
  41. Remove alternator to change Thermostat?
  42. Westers Custom Tune Trailblazer inline 6 (LL8)
  43. Turbocharged 4.2 Project almost completed!
  44. PCM Part Number
  45. Performance Module
  46. When should I install westers tune
  47. HP Tunners is getting closer to being ready for I6
  48. 4.2l variable timing?
  49. bottle to my envoy
  50. Tuners ??? Programmers?? help
  51. Who owns a 93 HOT tune??
  52. Need help installing Westers!
  53. Performance Chip
  54. Performance Parts for GMC Envoy?
  55. Have some performance questions
  56. 02 Voy.. Hesitation upon takeoff
  57. PCM
  58. I6 PCM opinions
  59. Westers Question
  60. performance chip
  61. Intake/Exhaust Port Matching...
  62. 4.2L cylinder head pic..
  63. Westers Tune MPG
  64. Started 'tuning' my 4.2L I6 today...
  65. Towing Experience with Chip
  66. question.. i6 vs v6
  67. HPTuner files
  68. Just installed my Westers PCM
  69. JET Stage 1 chip, Better Gas Mileage?
  70. Replacement Fan Clutch - 15293047 ??
  71. Tuning
  72. found chips cheap sounds good right?
  73. horsepower
  74. Wait4me Tune Info.
  75. HP Tuned!
  76. more power
  77. looking for jetchip stage 2
  78. Which Tuner Program?
  79. So does anyone HAVE a wait4me tune?
  80. The Wester's Deal
  81. westers upgrade with redone valve body
  82. Order form for Wester's????
  83. MSD Ignition & Coils
  84. Need Part # for PCM
  85. Anyone have a pic of the 4.2 PCM
  86. Wait4Me = Real Deal
  87. Low-cost tuner for ECM?
  88. I installed an electric fan
  89. Best Performance Upgrade
  90. latest mods: westers, air bags
  91. Wester's Tuning
  92. What is the Westers tuning all about
  93. elec fan?
  94. Pcm ?
  95. Anyone Tried this Ebay Item?
  96. Wester's Tune + Jet Performance Chip
  97. additional efan?
  98. Can anyone point me in the direction of custom camshaft makers in the states?
  99. Westers Transit Time
  100. Wait4ME
  101. Installed Westers tune NEED HELP ASAP!
  102. What tune?
  103. Anyone With A Westers Tune
  104. Has anyone dyno'd the Wait4Me Tune yet?
  105. That's it, I NEED a tune! Help me decide which one for a V8
  106. Westers 91/93 tune observations
  107. Anyone sell pistons/performance parts for the 4.2?
  108. Where to buy ECM's
  109. Tunes for Euro specs?
  110. Westers Tune Questions
  111. Easy Performance upgrade?
  112. Questions about getting a tune...
  113. Help Me With My Tune Install!!!
  114. EFILive Software Commercial version sale. $549!!
  115. PCM Tune
  116. tuning?
  117. Installed engine block heater... not bad
  118. 4.2l I-6 Mods
  119. Tuning Advice
  120. feeling the westers tune?
  121. Wait4me Performance tune!?!? Your input needed!
  122. wait4me off to a good start!
  123. Is the Westers tune worth the $595?
  124. Tune Question
  125. Tune Question
  126. tunes
  127. Bad vibes after tune
  128. Another temp. tune thread.
  129. Rainier V-8 tune
  130. Performance Chip????
  131. Jet Chip
  132. Tuners
  133. ordered my tune finally!
  134. Soo.. Jet Chips Eh????
  135. Spark Plugs and Tune?
  136. You have a TUNE ?? HELP plz
  137. Wait4Me tuning and gas milage :(
  138. Any other Performance mods out there?
  139. NOS???
  140. info on tune
  141. I6 Electric Fan??
  142. Can I Get 300 Hp From My 4.2 W/ Only Bolt Ons And A Tune?
  143. performance chips
  144. Want To Get A Tune, Need Help!!!
  145. Want 2 tunes
  146. whats the best tune
  147. Fuel for tune
  148. Trans settings with HP tuners
  149. Wester's Tune - Check Engine light flashes
  150. PCM Reflashing/Reprogramming
  151. Tune Question!!
  152. The 6th tune is a charm!!
  153. noob to the TB wanting to know about PCM
  154. Question on Vector/Jet
  155. Ordered my PCMforless tune today
  156. edge tuning
  157. Want to buy a PCM for less but confused
  158. PCM - Where is it?
  159. Just got my PCM4LESS
  160. PCMTune installed .. could it cause this?
  161. I6 modification and performance.
  162. Tri-Phase Performance Module/PCMFORLESS
  163. Nitrous Powered TB Project
  164. First tank with a tune= 13mpg
  165. Tune/Fan Clutch
  166. jet chips
  167. CASE relearn for PCMforless
  168. New PCM installed
  169. More info on EFILive
  170. tune
  171. Mods that won't affect Warranty
  172. What brand chip do you have in your engine?
  173. Tune Results
  174. Options for a PCMforless tune ....
  175. Who's got the best module or tuning?
  176. PCM tune that I received
  177. Tune then bolt-on, bolt-on then tune?
  178. The actual CASE relearn procedure
  179. PCM programmers? please help
  180. engine internal mod question
  181. Tune?
  182. So now that its tuned ....
  183. PCM Tune with ABS limiter ....2005 TB
  184. Best Tune?
  185. Nitrous
  186. HP Tuner Program
  187. can somebody please explain pcmforless?
  188. Has anyone got a gas upgrade with their tune?
  189. VVT Tuning
  190. I ordered my PCMFORLESS!
  191. PCMforless
  192. Ordered my PCMforless
  193. Question: Performance Chips
  194. Anyone has this ? I want one !
  195. PCMforless & the JET Chip... work together??
  196. tuned
  197. torque management
  198. water-methanol injection?
  199. How do I most effectively increase HP?
  200. PcmforLess
  201. Performance gains with mods how much?
  202. PCMTune Quest.
  203. Case relearn question.
  204. Noob Question...?
  205. HP tuners / EFI live
  206. PCM for less tune VS. JET Stage 2
  207. PCM for less tune on 2007 I6
  208. PCM Tune & Shift Firmness ?
  209. Tune or Exhaust - What Next?
  210. Pcmforless??
  211. PCM Question
  212. Adding HP
  213. tuning
  214. tuned 4.2 in texarkana area
  215. Engine Tuning
  216. Tunning??
  217. PCMforless VS Westers Garage
  218. JET performance chip
  219. Where do you guys go for performance parts...?
  220. PCM Forless tune. When should I?
  221. pcmforless yah or nah and transmission woahs
  222. Performance Mods HELP?
  223. Concrete numbers for various mods... Anyone interested?
  224. Performance Chip - Stage 2 by JET
  225. Performance Mods?
  226. Proper engine temp./.
  227. Wondering about the E-Fans
  228. nitrous
  229. PCM Tune
  230. HP tuners and supercharger.
  231. Getting That Off The Line Performance
  232. Nitrous Help?
  233. pcm tune
  234. Replacing Cam Actuator
  235. E-fans for the I6 benefit??
  236. Tuned PCM options...
  237. Electric fan question.
  238. shift kit with tune
  239. Jet Perfomance on TB 07 - Does anybody tried ?
  240. flex capacitor and tune
  241. What are my choices for "tuning" my TB.
  242. trying to do efans with efi live..any thoughts?
  243. Looking to make my 03 Faster
  244. pcm for less!
  245. HP Tuners VCM Suite 2.2.0 is Now Available!
  246. pcm tune for 04?
  247. Please Help Wont Start New PCM
  248. Idea to reduce engine Temprature
  249. Efan problem
  250. PCM tune void warranty?