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View Full Version : LS4 Performance


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  1. The emblem I want on my GXP
  2. What do i need to supercharge my 3800
  3. what kind of oil should i use for the summer
  4. GXP Wheel Repair
  5. 2010 NO more LS4
  6. LS4 Cam ?
  7. SO...I thought I had a lifter going south...tap tap tap tap..but..
  8. GXP Trade in value
  9. Hope I didn't screw up!
  10. e-cutout installed
  11. GXPs with factory wheels that need tires check this thread out and save a few $$$
  12. DIY intake
  13. The Carlo Crusader Pics
  14. my burnout
  15. Hogan DownPipe Rear Flange
  16. new rotors, pads, and painted calipers
  17. Have sold the 2007 Impala SS
  18. Entered my GXP in a burnout contest today
  19. wheel question
  20. Billet Grille Problem!
  21. Service Brake Assist over DIC???
  22. 2006 Impala SS Mufflers-Flowmaster
  23. Urgent help needed
  24. Summer Oil
  25. Wideband for sale
  26. Lowering question
  27. Will 04 Comp G rims fit my 08 Grand Prix GXP ?
  28. god awful fuel economy grand prix gxp
  29. the root of our Mod problems
  30. need some help
  31. how high should i set my revs
  32. Those of You Who Have Poly Dog Bone Mounts
  33. different remote range problem
  34. I had the brakes done and there is vibration
  35. **Garage cleaning**
  36. 3 questions from a newbie
  37. 2007 Impala SS
  38. new to site
  39. Hi from Iraq
  40. FS Cold Air Inductions intake
  41. Track Day
  42. Cold Start / Tranny Question
  43. Performance Parts I think this platform needs
  44. Heat Soak Reduction w/ nitrous.
  45. Few track vids...
  46. Smooth Intake Bellow
  47. 27th All G.M. Car/Truck Show & Swap Meet
  48. I lost to an 350Z
  49. LS4 exhaust manifolds WTB
  50. Removed my fan belt
  51. Heat soak Reduction Kit sensor location?
  52. **Sold car= parts to sell!!**
  53. Random Dents--08 Lacrosse Super
  54. I Need To Figure Out How To Work On My Engine
  55. think i can end heat soak with this idea
  56. new pics of my Grand Prix GXP
  57. Stupid Question on a Catless DP
  58. In car view from my racecar.
  59. Need some people to get tuned for a group tuning and dyno
  60. Vibration
  61. BuffaLOW...SS
  62. Best mods for top end?
  63. Play in the wheels, is it normal?
  64. I'm a post whore sorry! Car weighs 3580 without driver
  65. Will a 16 or 17" wheel fit the GXP?
  66. Been a while but I'm back!
  67. Oil Bearing Tests...
  68. My Car Went To The Dyno
  69. tires goodyear question
  70. ls4 oil problem?
  71. ALL GM Carlisle Anyone???
  72. rear tire problem
  73. Got to meet a member
  74. tranny issue with 07 impala ss
  75. Question about putting new brakes on.
  76. Aux input jack
  77. SSC Lowering Springs going on Sunday, but...
  78. Need brakes??? Buy your brakes here http://www.notasponsor.com/
  79. extremly strange dealer problem help!
  80. Someday the back of the GXP will look like this
  81. how much will stickier tires affect performance
  82. Tunning #'s please
  83. A couple clean pics and the cutout
  84. Photoshoot: Mr. Burns all clean and tinted!
  85. 08 GXP mods
  86. Chime in those timing/tune #'s on na
  87. McGwires paste gold class wax-the best
  88. E.t. of BONE STOCK 06 Impala SS
  89. Memorial Day
  90. Rubber Motor Mount
  91. So here is what i have come up with????
  92. Anyone interested in my set of Hoosier 245/35/18 tires pics excellent condition
  93. Doing some massive work to my car.
  94. Royal Purple soon to be in my car (see video on first page)
  95. New Rockers for our cars...
  96. My New Tires.
  97. Diablosport, sent this to Mike and I'm still waiting. Read this guys
  98. Power Steering Fluid
  99. doing a lot of work to my car and need some help asap
  100. Help!!wet shot ls4 owners chime in please
  101. Tire Goo
  102. 2005 GXP cars read this Superchips has made support for our cars (getting test file)
  103. Head
  104. Blown tranny?
  105. IAT Temperatures
  106. Help with mufflers
  107. New member with question...
  108. Mpg
  109. SERIOUS READERS LONG!!(N2O/NA-TECH) #7 Plug FRIED!!!
  110. Question about head lights
  111. FS: Monte Carlo SS LOW MILES, CLEAN
  112. 2007 Grand Prix GXP 31k North Central PA
  113. Mechanical O2 simulator works! So far....
  114. Finally!! After 3weeks!!!
  115. MAF and Predator BRAND NEW
  116. First race in the new race car (circle track)
  117. 2006 impala ss preformance mods
  118. Electric Cutout
  119. Another Intake lol
  120. Turning Under radio opening to switch panel
  121. Happy my day at the track!
  122. DynoStorm. Check this out
  123. 2002 Monte Carlo SS Woes
  124. What is a good web site for parts?
  125. Ran 2007 Mustang cobra
  126. Is CAI ripping me off??
  127. lowering my gxp
  128. Black GXP rims
  129. Side Skirts (Rocker Panel Molding)
  130. Straight Pipes
  131. Hogan DP ?
  132. Tire opions.
  133. Will this fast 78mm intake manifold work?
  134. Cutout placement problems
  135. Electrical Gremlin?
  136. Battery issue w 2008 GXP
  137. Drag wheels/radials...specs? Where?
  138. Some Car Mods i have been working on.
  139. FS: 06 MC SS Stereo
  140. Hood protector - reinstalled
  141. LS4 Physical Dimensions
  142. Couple pics
  143. Cigarette burns :(
  144. .83 g's accel
  145. Warranty
  146. The final cam question...maybe
  147. cams on jegs
  148. 2006 impala ss
  149. trifecta custom performance
  150. Tire Dilemma
  151. Nos on a 3.8 series 2?
  152. Selling LS4 Badge
  153. Participated in a parade today...
  154. Maf??
  155. why is the top end so bad? Will tune make it better?
  156. Selling some GXP stuff.
  157. It's here!
  158. Broken valve stem/TPMS
  159. has anyone supercharged the gxp?
  160. **Diablo tuner for sale!!**
  161. lets talk weight reduction...
  162. Getting rims and tires...want some feedback
  163. window tint
  164. Radio Porblem
  165. Bye Bye Impala SS
  166. Build Sheet / RPO Sticker
  167. Track Night
  168. Drag radials
  169. Stock Stall Speed ?
  170. Anyone willing to share a tune?
  171. Does anyone have a tuner on there LS4?
  172. Need tuning suggestions
  173. DEI exhaust wrap
  174. k+n intake
  175. Strut Tower Braces - Front Fitment Issue
  176. Auto start problems?????
  177. SSC Springs - get'em while they're hot!
  178. chuckling...
  179. anyone wanna take over my lease??
  180. New Track Footage
  181. Went to the races.
  182. The BEST tranny cooler?
  183. Got a Superchips Cortex programmer
  184. Water wetter
  185. need help deciding between 2 springs
  186. Quaker State Goes Unchallenged
  187. hey
  188. question about keyless+tire sensor
  189. Welcome myself......
  190. Bye, for now, LS4 owners
  191. A letter to GM
  192. Cross Drilled and Slotted Brakes
  193. Got a Superchips Flashpaq and talked to Mike at Diablosport
  194. Cold Air Inductions-GXP-intake for sale
  195. HUD in my truck
  196. stock rims tire sizes?
  197. Summit Fully Welded Mufflers
  198. My go at a Headlight Intake
  199. Anyone need a set of GXP tips...
  200. How do you all like your LS4 cars?
  201. Caster/Camber Plates
  202. FINALLY got Brakes and Alignment Fixed
  203. Lets hear from the Impala SS
  204. getting some harland sharp 1.8 rockers
  205. "Nice" Email From Pontiac
  206. Track Prep list
  207. Anyone have a used Superchips Cortex programmer
  208. Rocker Arms
  209. Count of Monte Carlo in here
  210. smallest wheels
  211. Tips
  212. stainless steel brake line help
  213. Custom Tune People - Shift Points
  214. 60' Times
  215. GM to cut 21,000 US factory jobs, shed Pontiac
  216. GM is closing down Pontiac
  217. Went to the track over the weekend
  218. wider tires Impala
  219. Does anyone know anything about these coilovers?
  220. aftermarket wheels
  221. getting really tired of having brake issues
  222. New Brakes...
  223. Stb's Installed
  224. How to remove fender vent insert on GXP
  225. Got a New battery & New tires.
  226. exhaust manifolds.
  227. Ported throttle body results
  228. Pontiac is axed as of 4/24/09
  229. Need help asap please!!!!!!!!!!
  230. GXP Side Marker
  231. Sick 4x4 truck
  232. Longevity Of Your Transmissions
  233. Had my 2006 Impala SS tune Yesterday
  234. Flipped motor mount
  235. Anyone have a "How to..." to check for a dead lifter?
  236. New idea
  237. Track Saturday
  238. Another F.N.G
  239. Thank you!!!!!!!!
  240. Chip Chip Chip Everywhere!
  241. Worlds slowest GXp
  242. New era performance ported tb
  243. Something amazing happend
  244. Jimmie Johnson Monte Carlo
  245. Throttle Body
  246. New to forum 2008 ss impala
  247. New Appearance Stuff and Fixed Exhuast Tips
  248. Electronic Throttle amplifier
  249. went to the track tonight
  250. what rotors/pads?