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Engine Tunes/Mods [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum
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  1. Upgrades for the 5300 V8... I can't find anything.
  2. Gen IV 5.3 LH6 Info...
  3. Hypertech programmer for 5.3 V8?
  4. 5.3L Mod questions
  5. 5.3L Westers tune ?
  6. 05 Trail ext V8 5.3l upgrades
  7. Got my 5.3L V8 Vector Tuned
  8. Need to Mod my 5.3
  9. 5.3 V8 DOD Tune
  10. 2006 5.3 owners...
  11. What else can I do to help my performance?
  12. Miles Per Tank....what does your DIC say?
  13. Has anyone gotten their DOD trailblazer tuned yet? how is it?
  14. are there any ways to manually activate the DOD ?
  15. Anyone installed E-fans yet?
  16. 5.3 DashHawk owners ...
  17. UD Pulley...What is it, what does it do?
  18. Best ECM Tuner for '03 5.3L V8?
  19. SS engine covers on 5.3 engines
  20. 5.3 L engine cover part number
  21. Edge Products Evolution (No Worky)
  22. New 07 5.3 Trailblazer
  23. New to the board (and GM vehicles!)
  24. New To Tuning
  25. Jet Performance PCM for 5.3L - Anyone Try It?
  26. PCMFORLESS Tune on 5.3 V8 Performance
  27. E-fan
  28. HP Tuners VCM Suite 2.2.0 is Now Available!
  29. debating getting my 5.3L tuned
  30. disable DOD?
  31. Removing PCM
  32. How many HP increase do you see on tune?
  33. Tuned by Trailblazer at Corvettes of Westchester last night. WOW!
  34. Upgrade
  35. hand held tuners that disable DOD
  36. handhelds?
  37. HyperPAC 83008 or?
  38. Superchips NEW Cortex Programmer - Gravana Tuning
  39. Hello Guys
  40. Performance upgrades
  41. engine programmer
  42. Hello All, New to site
  43. Pcmforless Who Needs Them?
  44. 2003 Envoy 5.3 160 Thermostat Question
  45. A/F ratios on canned tunes
  46. Horse power gain
  47. 5.3 trailblazer vs 5.3 silverado
  48. are performance chips worth it??
  49. Another tuner tread :-)
  50. 79K Miles Issues
  51. tuner?
  52. Fan is not blowing
  53. Adding E-fans
  54. Ethanol/E85 blends
  55. my dyno result
  56. Let's talk gas mileage
  57. what is this word mean ??
  58. installed new pcm
  59. oil pressure dropped
  60. 2nd dyno result
  61. here,s the pics of new mod
  62. Need Harness Help!!!
  63. Posting Treads
  64. engine code
  65. 5.3 Prime RPM for Mileage??
  66. Tuner for 4.2L?
  67. New To Tuning HELP
  68. tuning question
  69. How much HP does your 5.3L put out?
  70. Stroker kits, Rods, Pistons etc
  71. rocker arm
  72. Tune for tire size change
  73. Under-drive pulley - Do it yourself??
  74. Will LS2 bolt in?
  75. What is tuning from a newbies stand point
  76. Pcm Question
  77. Does anyone have pictures and instructions of the efan mod?
  78. programmer
  79. Clunk when heat is on
  80. I put in the PCM and E-fan kit problems and amazement..
  81. SAAB 9-7x: The Bastard Stepchild needs help!
  82. Mileage increase with K&N
  83. Loud squeeky noise on a very cold day
  84. New member here: need engine mod input
  85. Oil pressure drop!
  86. Whistle sound from Oil Dipstick
  87. Efan Relay Kit