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View Full Version : LS4 Performance


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  1. Best Mileage to Date
  2. anyone runnin e85?
  3. fwd to rwd
  4. colored stitching
  5. Red MCSS / Black Headlights - Added "Sunny" Pics
  6. 250k, 2006 Grand Prix GXP
  7. Wooohoo!!!
  8. Vids of mufflers on my car past and present.
  9. My GXP Exhaust Idle
  10. Secret to running in the low 13's
  11. For those New Englanders that dont venture out of this section! May 7th Car Show!
  12. Pan Drop Filter/Fluid Change
  13. Indy LS4 Owners
  14. harmonic balancer
  15. Rims
  16. oil pan gasket gxp
  17. GXP Suspension
  18. LS1/LS2/LS6 intake swap Sticky!!!
  19. Transmission Cooler
  20. Transmission Rebuild
  21. Transmission chain
  22. Dod filter......important??
  23. My Journey to a GXP (pics included) 56k pound sand
  24. Question about Comp Tune...
  25. turning DOD off
  26. Funny thread
  27. 5X115 vs 5X114.3
  28. New LS4 owner
  29. LS1 intake swap.
  30. Intake swap guys, wheres the MAP sensor go??
  31. HVAC Mode Door Actuator
  32. Latest exhaust vid
  33. header wtap ?
  34. Intake Manifold
  35. Got some new rims
  36. cat over temp program?
  37. 110 octane without a tune
  38. 1st results from taking gxp back to Dealer.
  39. Summer Tires
  40. interior resonance delete??
  41. Check your transmission fluid
  42. Just picked up a set of Continental Extreme Contact DWS Tires
  43. Cooler thermostat
  44. Trans Fluid
  45. Tail light conundrum
  46. new look for the grill
  47. New Impala SS owner
  48. Flipped and wrecked the car....fun while it lasted
  49. Finally taking the Gxp in to the Dealership
  50. question about mustang and old gp rims.
  51. Dome light clips
  52. GXP Issues- Check Engine Light, Trans issue least I think? Steering Wheel Viberations
  53. headliner fit
  54. It's official, Tranny destroyed.
  55. New mod should be here in 3wks
  56. Transmission Flush
  57. ordered some parts :D
  58. tranny acting up...
  59. Traded the Monte Carlo
  60. Car shelter collapsed...
  61. Exhaust Manifold
  62. GXP Strut Assy swap
  63. Starting to mod my GXP - help me.
  64. Transmission issues...curious question
  65. tourque on android
  66. Tune Advice
  67. Lew tune
  68. Cully's SS - New Pics / Mods
  69. had the fuel injectors cleaned
  70. February LS4 of the month Winner
  71. 19" neproxy crome rims
  72. diablo for a 2005 gxp + fuel filter
  73. Powdercoating Alcoa's?
  74. 2x SSC Springs
  75. XM Radio Cutting Out? Also.....
  76. Just make/relocate a new IAT sensor
  77. CAI intake research
  78. Dash
  79. Minor work today
  80. need help fast!!
  81. Flowmaster 40 Series Cold Start
  82. All Dash Warning Lights on
  83. trans pan compatibility
  84. dedicated forum
  85. '06 Grand Prix GXP RPM Fluctuates
  86. Yes! DoD is gone!
  87. Ipod Install on stock Monsoon System
  88. Stock rim weight
  89. Headlights
  90. Magnaflow exhaust owners!!!
  91. Headlights and Odometer dont work after stereo install
  92. LS4 throttle body
  93. HID Issues!!
  94. P0843 P0700 trans codes
  95. Flowmaster 10 series....
  96. Relocate ECM and TCM?
  97. trans / tire questions
  98. I now have a Batman smoke screen or I'm using a shit-ton of oil
  99. Getting ready for spring.
  100. Rear exhaust manifold idea. Work with me here.. guys.
  101. DiabloSport Predator/Trinity Custom Tuning Available!
  102. cai help please
  103. diablosport trinity???
  104. WOT 1st to 2nd Tranny "Squeak"
  105. cylinder1 misfire. fuel economy (gxp)
  106. Underdrive Pulley?
  107. 275/40 rear tires
  108. Slinging Grease
  109. Question???????
  110. Cartuning Kit Question
  111. GP GXP Braking Issue
  112. crossover pipe wrap
  113. My Fuel Mileage Statistics
  114. Went to the track
  115. Another intake option?
  116. Resistor in key?
  117. February LS4 of the month vote poll
  118. tap shift change up
  119. Anyone tint windows near Lima, Ohio?
  120. converting a non-tap to tap-shift?
  121. Equivalence A/F ratio vs. O2 mv reading
  122. GXP Stock exhaust tip size
  123. GP GXP fog light bulb burnt out
  124. Near-future plans for my car
  125. STS Turbo Kit
  126. Drag Radials/Slicks
  127. lauching??
  128. Check this car out for sale......
  129. Few questions/concerns with the GXP
  130. Projector headlights
  131. Service stability/traction systems!!
  132. transmission
  133. Thought you guys might enjoy
  134. Pic request. Somebody snap a pic of the rear exhaust manifold outlet form.
  135. uh oh...3 days into the honeymoon....tranny slippage?
  136. For those who think a small cam is not the way to go. Look!
  137. MCSS - No Audio Out of Amped Radio
  138. ss emblem on grille
  139. need some hp tuner help
  140. The W-Body FINALLY gets the 6-speed auto from the factory for 2012!
  141. Brakes?
  142. Throttle Bodies...
  143. new GXP owner here....
  144. Diablosport Predator on Flebay
  145. Flipped motor mount
  146. Flip's taillights
  147. auto dim/temp/compass install
  148. Gauge Needles
  149. Warranty Work
  150. gxp rear deck 6x9 aftermarket install
  151. Opinions Needed
  152. Sort of on topic
  153. Debating on future of GXP
  154. is there a reason...
  155. Great deal on Optima Batteries
  156. Is it the battery?
  157. exhaust question
  158. got stuck in snow now cars acting wierd
  159. 7191 predator, with cables, $175 shipped...
  160. 07 GXP Bought last week dead battery
  161. Weight difference between Alcoas and knockoffs?
  162. Shimmy????
  163. Shift Kit
  164. February LS4 of the month
  165. Free fix for whining idler pulley
  166. GXP cam swap question
  167. P-0420
  168. Who's still here? Everyones Leaving :(
  169. Might be departing with the Impala
  170. Thinking about getting a Trailblazer SS
  171. Help...Buzzing noise when wheels spin
  172. gxp badges
  173. Again???
  174. 4t65e drive chain
  175. Traded in the SS
  176. Check out what a local shop is doing around KC....
  177. impala rental
  178. water pump question
  179. Tuning for '07s???
  180. i finally dumped the gxp
  181. NOLA World of Wheels
  182. Hud
  183. Wrecked the car today
  184. Back from the dead thread. LS6 cam. respect this guy, guys!
  185. Need Some Input
  186. water pump head gasket radiator take your pick
  187. repainted the lettering on my engine cover (mini "how to")
  188. Anyone close to JC MO with a tuner
  189. Simple way to disable DoD?
  190. Where is the Engine Block Heater?
  191. 07 Impala SS 4th gear bump
  192. Official post your HIDs thread
  193. 1 Year Free XM:D
  194. Where is Larry???
  195. Transmission question
  196. 87 Octane Tune: Mission Accomplished!
  197. Catless Downpipe + DiabLew Tune = More Power & Better Mileage!
  198. another tranny thread, but i swear its somewhat original
  199. Magnaflow catback without resonator?
  200. It's so damn cold...
  201. The first LS4 of the month Winner
  202. Tighter converter ?
  203. Last minutes to vote
  204. Anybody run 275/40s other than Falkens?
  205. jp and i ran again today
  206. New track times for the SS with vids
  207. Moving on. . . .
  208. Chrome trim removal??
  209. Lew's DiabLew Tune: STILL the Shit!
  210. west coast specialization on the 4t65hd
  211. Tap shift conversion
  212. GTP transmission the same?
  213. factory air filter part#
  214. 06 impala SS - mod help
  215. Anyone repaint their stock calipers on a GXP with a different color???
  216. Blew up dash speaker
  217. My First Car
  218. Tire Pressure Monitors
  219. Got My black DEPO Headlights In...Pics Inside!
  220. Impala compass location
  221. GXP Owners! What is you EQ Set at?
  222. LS4 voting
  223. Dyno Results LS6 intake etc
  224. 6T75 6 speed conversion
  225. intake spacer
  226. LS1 intake installed engine runs but.. Tuning?
  227. Squeaky steering wheel driving me nuts lol, ISS?
  228. Steering Wheel SS Emblem
  229. So, about that N/A build...
  230. Finally got my Impala back with TEP transmission upgrades!
  231. My Addition To My Trunk
  232. dod disable without tuning. temp fix question
  233. Custom Trunk
  234. Got my windows tinted yesterday....
  235. beat the smog checks?
  236. Tuning.
  237. Engine bay cleaning question
  238. Reset tpms
  239. Started wiring up my first amp...
  240. new ss emblem
  241. LS4 of the Month January Vote
  242. 4th dead battery in 4 years... WTF???
  243. g8 wheels on an impala ss
  244. Snow Slide Crash
  245. converter
  246. Free EPDM Serpentine Belt Wear Gauge
  247. exhaust
  248. GP GXP Brakes
  249. gm performance ls6 hot cam
  250. GM Heritage