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  1. Fix my exhaust droning! Need upgrade suggestions.
  2. Harmonic Balancer
  3. GXP bone jarring ride over small bumps..Struts shot??
  4. Parking Brake not holding?
  5. Had this code/problem for months
  6. Check engine light on cant connect obd2
  7. Different filter on CAI kit?
  8. ls6 intake swap MAP sensor question
  9. dyno results manifold swap?
  10. Next Go Fast Mods
  11. Headlights have a mind of there own! Advice?
  12. Trans question
  13. LS1 Intake and LS1 TB
  14. Engine tick when warm...Push rods?
  15. LS4 Monte/ Impala parts for sale in the classified section.
  16. just got her lowered
  17. lowering springs bump stop
  18. Dallas/ft worth transmission shop
  19. PID listing for LS4
  20. OBX Headers and cutout installed
  21. evap mon inc!
  22. 92k no trans issues. 92300 BOOM!
  23. Starter Problems
  24. Hud
  25. transmission fluid
  26. need some part links please
  27. looking to buy a Grand Prix Gxp
  28. Adding coolant properly?
  29. o2 Codes + P0300 (random misfire)
  30. Car meet and a couple of good races
  31. Would like larger diameter sway bars
  32. anyone use a bullet muffler for a resonator
  33. Ls2 intake
  34. Lowered ls4's please read!!!
  35. Trans fluid
  36. air intake insulated box?
  37. WTB 1.7 Rockers
  38. Need someone in MD,DC or VA with exp to install a ls2 cam and a ls1 intake...
  39. lowering kit
  40. 06 GXP vs. non supercharged cobra??
  41. which hole/slot do I slip in the TEP trans cooler?
  42. shutter when i make a right turn????
  43. high idle
  44. GXP Brakes
  45. New front Poly motor mount
  46. P0496 Purge Solenoid
  47. New interior electrical gremlin... sigh..
  48. Monsoon Speaker replacement.
  49. Anyone get a little static and /or buzzing from the front middle dash speaker
  50. knock retard that wont go away
  51. GP GXP radio question
  52. oil catch can
  53. brakes??? The best ones to get
  54. someone post a vid of res delete plz
  55. muffler delete
  56. question about converting to HID's
  57. torque management tuning question
  58. Anyone using Dot 3 or 4 syn. brake fluid?
  59. Any Modified Supers?
  60. turning off 08 impala ss stability control?
  61. kyb struts and lowering springs
  62. do i have xm radio?
  63. 1st gear slippage. need advice.
  64. 06 monte ss upgrades. where to start?
  65. 2-3 Trans shift point
  66. How or where do you start to flush/change power steering fluid?
  67. first race of the season for me
  68. Opinons ! 2007 MC SS
  69. transmission cooler
  70. transmission randomness
  71. ecm tune questions
  72. Poly mounts from zzp
  73. oem ss wheels
  74. Where to find spark plugs
  75. ZZP shorter dog bone
  76. Picture of LS4 Valve Covers
  77. problem
  78. Custom leds on the whole dash almost done
  79. ...Aux Install??
  80. Dtdp rocker switch
  81. Anyone in the Destin,Florida area?
  82. Brembo gxp brake pads at tire rack
  83. gxp axle seals?
  84. Looking for assistance in Michigan with Cam Swap
  85. How to adjust tire size in hp tuners?
  86. Powder Coated Valve Covers
  87. gxp brakes
  88. rocker lift
  89. Front engine mount V2. Complete
  90. Battery was out of car for 4 days.. put in new one..limited power but no start
  91. pro tuning lab HID headlights for 08 grand prix
  92. Wheels for grip
  93. zzp lca issues
  94. stock downpipe
  95. 243 heads....removing old head gasket
  96. LS4 in a Volvo V70 2004
  97. Ok tires larger than factory.. questions from those that have them
  98. Whats the factory wattage on the base 9 speaker monsoon system in our GXP's?
  99. questions??
  100. Do I need to disable DoD for...
  101. New GXP Owner First Time At Track (EVER) Times
  102. sweet pic
  103. 3.29 Gears
  104. Newbie 2008 GXP owner! Wheel tire question!
  105. GXP Rear speaker help
  106. Speedo & Radio spike?
  107. gxp hid fogs
  108. 06-08 (prem. gas) vs. 09 (reg gas) - What's the difference?
  109. Tires?? Good ones
  110. Impala Shocks
  111. 2008 Grand Prix GXP
  112. Converting trans to AN lines
  113. 2 Videos of todays dyno event
  114. Getting her dyno tuned tomorrow
  115. 2 used, scratched rims
  116. remote start questions...
  117. The japs when be rolling in there grave to see this
  118. Got her back to the track Friday night!!
  119. Does this sound healthy??? :/
  120. Question?
  121. clicking sound
  122. another gxp owner jumping ship!!!
  123. Stupid post but I thought it was neat
  124. stock 18" SS rims?
  125. will these fit us ?
  126. Valve Cover Pressure
  127. Audio in
  128. I've been Lew tuned!
  129. G8 DOD valley cover
  130. Suspension Bushings
  131. Have some SSC lowering springs coming on Monday.
  132. downpipe
  133. Exhaust clip thread (should be a sticky)
  134. ashtray ideas?
  135. who right ? or wrong ?
  136. New GXP Owner needing advice
  137. 2007 GXP owner (again lol)
  138. Proud Happy new owner of a GXP!
  139. Internal Door Locks, Turn Signal, Hazzard, Washers Not Working
  140. Led And custom Cluster On Imp SS
  141. There's a new transmission Builder on the block!!
  142. Poly Mounts - how stiff ??
  143. 2007 IMPALA SS Magnaflow Exhaust No res
  144. Tuned Up CAI In
  145. Improving Fuel Economy On 2007 Impala SS
  146. noise in rear end
  147. TEP Trans
  148. 2007 Pontiac Grand Prix GXP
  149. Possible Buyer. Need advise!
  150. Few questions. . Ls6 im swap and springs??
  151. May need struts
  152. E85 conversion.
  153. how to fortify your rear mount
  154. Poly Mounts - who wants them?
  155. changing alternator this week
  156. Black 2008 GXP found
  157. Suspension Question
  158. LS2 Throttle Body Install
  159. service battery charging system light...
  160. Need the name of the LS4 Engineer!
  161. Yet ANOTHER 1.8 Rocker Thread...
  162. oem stock gxp muffler's fs
  163. sway bar bushings
  164. passenger CV half shaft leak
  165. Paranormal or GXP Probs
  166. A/C not working
  167. strange grinding noise when starting
  168. random misfiring?
  169. need front bumper
  170. Broke my trans tonight
  171. LS2 intake swap
  172. LS4 Harmonic balancer prices/where to buy/install notes
  173. Performance LS4 in Fiero NO POWER?
  174. Valve Covers
  175. nys inspection fluke?
  176. Should something be hooked here?
  177. anti fouler trick
  178. any idea if these can be fixed?
  179. pre-08 LS4 GXP GP Overkill Tune for sale
  180. pre-08 LS4 GXP GP Overkill Tune for sale
  181. Battery Issue & Are Red Tops Worth It?
  182. anybody got big upgrade plans for spring/summer?
  183. 06 GXP Nav questions
  184. Ever remove the chrome strip from the trunk?
  185. Wiper fluid not spraying anymore.
  186. LS4 Head Bolt ??
  187. Glowshift oil sandwhich plate installed
  188. Intake upgrade question
  189. Impala parking brake part number
  190. SS's new shoes
  191. Cam Swap...Parts list and ordering in a week or two
  192. ls4 durability
  193. Swap on this intake?
  194. Intake + TB swap, Nitrous Plate ?
  195. Depos on ebay
  196. Radial Set-up
  197. While my trans is out...
  198. Cool pic
  199. hey ls4 brothers..
  200. rear end issue?
  201. Airaid tb spacer
  202. HP gain from cam?
  203. Charging System Failure
  204. catch can milky
  205. finally order hp tuners
  206. Just the gasket?
  207. Catless downpipe with magnapacks?
  208. Zex Wet kit for sale
  209. adjust headlights?
  210. hit the jackpot today
  211. Any LS4 owners running SLP loudmouths?
  212. Adjusting electronic throttle with hp tuners
  213. Need a tranny
  214. Few things for sale
  215. Carbon Fiber or Black Vinyl SS Badges?
  216. need help with grand prix gxp gear ratio!!!
  217. Anyone tried these?
  218. My GXP on Auto Trader
  219. How much would it cost to rebuild my tranny?
  220. climate control gxp
  221. Guys with TEP trannies. Come on in.
  222. Ls7 intake swap
  223. Will this work
  224. LED's - Little Things That Make A Huge Improvement
  225. Need a tune!!!
  226. Fast & Furious 7 scene in Atlanta
  227. Lifters & DOD
  228. LS4 Car Photo Request
  229. Dimensions of LS4?
  230. white smoke help.
  231. Fuel injector cleaning
  232. 2007 GXP- CTS-V Brakes, E-cutout, Custom Shifter, Front Splitter, and more
  233. Getting rid of the GXP
  234. Trick flo heads or these
  235. Under Coating?
  236. Free horsepower!
  237. dash speaker
  238. 05 Grand Prix GXP rear brake backing plates
  239. LS4 knocking
  240. New to the LS4
  241. for people with hptuners and SD tuning.
  242. New track time
  243. Tranny is out again
  244. Damn Mel made it on power block
  245. Single Turbo Beast - just for fun.
  246. LS4 monte carlo SS upgrade help?
  247. checking transmission fluid
  248. Trans speedo unit options?
  249. E3 plugs causing misfire?
  250. Transmission removal